Two Equestrian weeks had passed since Andromalius began his training in the art of battle magic. For twenty days, he had been spending most of his time studying magic in theory and in practice. With barely a distraction to catch his attention, he found himself learning more than he would've expected at first. Without the internet, TV, or any other things he used to spend his free time on, the only thing that presented itself to him was mind-numbing, all-consuming boredom. So, he made up his mind to learn instead lest he would go insane from the lack of things to do.

Despite being completely exhausted by the end of each training session, he came back every day with his strength replenished. He wasted not a single minute, indulging in reading between training sessions to make sure he would be ready for the future. The last time he remembered doing something like this was back in school when he was taking his final exams. Days and nights, he would try to cram as much knowledge into his head as he could to make sure to pass the exams, for they would define his future... or so he thought. He wondered if what he learned could be used in the new world, but so far, he had only been learning what he had no idea existed. It was fascinating and exciting, bringing out his desire to learn and using it to the full.

Both Princess Luna and Inanna the Succubus were surprised to see his zeal for magic and learning in general. In truth, the alicorn was unprepared for it, and fear rose inside her. She had seen a great many ponies trying to gain the arcane knowledge in her lifetime; she was one of them, in fact. As a filly, she had all the time in the world to dig into Canterlot archives and the vast knowledge of magic stored within. As she grew up, her grasp and mastery of the arcane arts became greater and greater; and day by day, the magic corrupted her, contributing to her downfall. To this day, she didn't know what it exactly was, but she suspected some of the knowledge she obtained influenced her mind, for many spells and books were in the archives, and perhaps not all of them were suitable for someone as young as she was at the time.

Andromalius, in some ways, reminded her of herself and other ponies that were twisted by the knowledge. Of course, what she was teaching him didn't come close to the complicated matriсes, ancient incantations, and obscure rituals of the deepest magic. Princess Luna was careful in presenting the spells, but it didn't guarantee he wouldn't find something he wasn't supposed to.

The Canterlot Archives of the Arcane was a restricted section of the castle, lying deep within the mountain on which the city was built. Powerful runes were etched into its walls, protecting it from being accessed by those who weren't supposed to be there. The Royal Guards were absent from the halls, and only magic was present; its buzz could be sensed even by the weakest unicorn who would happen to be near.

Princess Luna stood at the entrance, feeling the seals on the seemingly unremarkable doors. The seals were intact, although there were signs of repair done not too long ago. When she was there last, she was too young to even hope to strengthen the protective spells; and even now, she was weak. Her long imprisonment on the moon left her with no means to obtain the knowledge, so all she did was experiment with magic. As her rage burned, she wanted nothing but to figure out a spell that would defeat her sister and the Elements of Harmony. Her power grew, as did her knowledge, but it was outclassed by Celestia's own power even now.

However, Princess Luna was finally powerful-enough to contribute to the protection of the Archives. The alicorn closed her eyes and ignited her horn; it glowed blue. The hidden runes appeared on the doors, glowing with the same color as her horn. Slowly, a few more runes were burned into the surface, adding to the many others: Celestia's sun-rune, Starswirl's star pattern, and marks of those before, going back to Clover the Clever, the first Court Spellwright and Master of Magic in service to Equestria.

With the seal complete, Luna opened her eyes and released her magic. The symbols on the doors glowed for a few more seconds before fading away until nothing but smooth wood was there.

"It hath been a thousand years since I was gone," Luna spoke, "Were there no powerful unicorns ever since?"

"There were, more than one," Celestia replied, standing next to her, "However, I didn't see them fit to contribute to the Door Seal, nor did I see them fit to access the Archives."

"But if we don't find someone suitable before we are gone..."

"I know, sister, but we must be vigilant," the solar alicorn replied, "There are many who would want to learn all they can from the Archives, and we both know how dangerous it can be."

"I understand, but if no one is found, then the knowledge would be lost with us," Luna looked at her sister, "Dost thou understand what it meaneth?"

"It's a fair price for the safety of our subjects," Celestia said, "If it is to disappear with us, then so be it."

Luna looked at her sister with disbelief but could find no words to say to her. Her maw opened and closed, and yet nothing came out of it.

"Tell me, sister... how is Andromalius doing?" the solar alicorn changed the subject as she turned around and headed to the main halls of the castle.

"...I would say he's doing rather well," Luna replied after a small pause, debating whether or not to pursue the original subject, "He is an interesting person to converse with. He knoweth many things about his own world, and I find myself enjoying listening to every little thing he hath to say."

"And are they believable?" Celestia inquired, raising a brow.

"Some things he told me are incredible and seemingly impossible, that is true," the alicorn nodded, "He sayeth there are libraries thou canst access from the comfort of thy home without so much as standing up from the bed. He sayeth that hundreds of books can be stored on things smaller than a bottle cap."

"This would be efficient, but how can these books be read?"

"I am trying to wrap my mind around it myself, but apparently, there are... com-puters, which decipher the storage and make proper words appear on... screens," she tried her best to explain what Andromalius told her, "I think 'tis a projection of some sort, but it can be manipulated on the screen itself. Incredible, simply incredible."

"And very hard to believe," Celestia pointed out, "Does he know how to make those com-puters?"

"Unfortunately, no, but he had worked with them in his world," Luna replied, "He doth say that they work on electricity and are made of metals and silicone... but he did say he might be misremembering something."

"Oh, so electronics?" Celestia's eyebrows rose with the realization.

"I know not of what thou speaketh, sister, but if thou dost know what it is, perhaps 'tis worth a try to recreate using our technology."

"Possibly," the solar alicorn nodded, "However, we must evaluate how such technology can impact Equestria as a whole. Did Andromalius mention any downsides?"

"Well..." a frown appeared on Luna's face as she spoke, "There are some, of course. But I'm reasonably certain we can make sure they won't happen to us."

"And what are they?" Celestia pressed on.

"For once, those... libraries in com-puters aren't always true," Luna said slowly, "Some are utterly false and exist for no other reason than to make money. He said that this net of libraries goeth deep, and some things that can be found there are... disturbing, to say the least. He refused to elaborate, but 'tis clear something can go very wrong with this net."

"Then perhaps this 'library net' is not to be," Celestia stated firmly, "If it can't be controlled, if it can spread blatant false information and harmful ideas... for the sake of our subjects, we'd better not allow it to happen."

"That could be the right way, but I can't help but wonder about how beneficial it would be for all of us," Luna suggested, "Certainly, there shall be downsides, but we can do our best to minimize them."

Celestia nodded slowly, but her mind was focused on their demonic 'guest'. If he had such knowledge, what else could he have? What other ideas did he bring over from his world? And, most importantly, how would these ideas serve Equestria if not against it? She would need to watch him closely, for he could destabilize the peace she had worked on for centuries. After all, his knowledge could prove dangerous to her subjects, perhaps even more so than the things stored in the Archives.

On his twenty-first day, Andromalius once again returned to his room after the training and collapsed on his bed. His horn was buzzing with soreness, and something inside him felt uncomfortably empty. He let out a long sigh of relief once he felt the cool bedsheets pressing against his body. The passing days were a blur of training and recovery, and this one was no different.

"Luna gives you no rest, doesn't she?" Inanna said, materializing on his bed as she usually did. Andromalius turned to her but was silent for a few more moments as he caught his breath, still winded up from the training.

"She says... if my potential is so great, then so... then so must be the training," he replied in a strained voice.

"That's what she said, yeah," the succubus nodded, adjusting her position on the bed, "But hey, it's paying off. Just seven days ago, you couldn't hit the dummy at one hundred meters with that Ice Bolt spell. Now, though... you could hit it with a droplet of water straight in the eye, I bet."

"Yeah..." he nodded weakly, "But there's... so much more..."

"What did you think would happen? That's magic for you," Inanna grinned, "Were you expecting it to be as easy as walking up to an altar and reading a spell from a book?"

"...That'd work," he nodded once again, a small chuckle escaping his lips.

"If it were that easy, everyone and their mother would be great and powerful," she replied with a roll of her eyes, "Anyway, with that aside, you've been stuck in the castle for, what, two weeks already? I think it's time you go out and see the world. The city of Canterlot, at least."

"I need rest..." he replied while giving a deadpan look to the succubus.

"You just need to lie down for a few minutes and you're gonna recharge," she shrugged, "You didn't burn out, after all. If you did, it'd hurt, trust me. Same thing happens with sex if you do too much of it."

Andromalius groaned and turned away, the bed creaking slightly under his weight.

"You know, when you have sex eventually, you should be on the bottom," Inanna commented.

"Huh?" the hell stallion turned back to her, making the bed creak again.

"You're heavy," the succubus pointed out, "It'd be safer if you were on the bottom during sex."

"Whatever..." he groaned with a blush on his face and turned away again.

"But it's actually important. You're twice as big as an average pony, and you're at least four times heavier," Inanna continued, "Now, I'm just warning you to make sure that you don't end up bruising someone or, worse, breaking something. You look pretty tough, but ponies? They can be hurt easily."

Andromalius was silent, although he did understand what she was saying, and it did make sense. However, he didn't feel comfortable with discussing his sexual life, past, present, or future, with the succubus. In any case, there were things to worry about when it came to his size. Regular pony-sized furniture struggled to support him, even the big bed he was given during his stay noticeably bent when he lay on it. If he were to get his own apartment or house, he would have to make sure it would have enough space for him and be strong enough to support his weight. Otherwise, he would be risking getting impaled in his backside if, for example, a chair broke from under him.

When he was a human, he didn't worry about any of it. By all means, he was just average height with average weight. Most clothes fit him, most furniture was right for him, and the height of ceilings didn't bother him unless it was extremely low. However, now he was possibly one of the largest equines in Equestria, and also one of the strongest. Therefore, he was possibly one of the heaviest as well. After all, he had plenty of muscle and bone, not even counting the protective plating growing on his body, which probably weighed a lot by itself.

Despite his size, however, he didn't feel hungry at all. Each evening, he would dine with castle staff, and that was usually his only meal for the day. He had a crawling suspicion that something was wrong, for such an amount of food shouldn't be able to satisfy him for the day. One thing remained unchanged from his previous life, however – some time after consuming food or water, he had to visit the toilet room. When he had to sit, he did so in a rather uncomfortable position in fear of breaking the toilet with his weight, and he certainly wasn't looking forward to the mess it would've caused.

So, his size was definitely a problem he had to solve somehow. But for now, all he could do was be careful and avoid sitting or standing on things that wouldn't be able to support his weight.

His mind trailed off to different thoughts as he closed his eyes to rest. Size, muscles, sex, all of it didn't really matter. All that mattered to him at the moment was rest. He didn't expect the training to be easy, and it was certainly much more than visiting a building in a castle and looking at the spell once. Each spells requires the mind to work, and then there was mana that he needed to pour in the right amounts to achieve the correct result. Of course, some things could be tweaked here and there for a particular situation, but precise control was what safety required.

Whole buildings could be toppled if battle magic were to be used incorrectly. As a matter of fact, the city of Canterlot once almost fell from the mountain when a powerful unicorn mishandled their spell. It shook the city, damaging its supports, and a combined effort of many unicorns was required to help the city stay in place before the supports were repaired and reinforced.

"You know, I've wondered..." Inanna broke his line of thoughts, "Ever since I met you, you've not been that open about sex. Is it just you or is it your people?"

"I don't really like talking with people I barely know about this stuff," Andromalius explained, "Definitely not in... this detail."

"Detail?" the succubus blinked in confusion, "That's pretty surface-level, nothing even close to, well, detailing anything. Tell me, why are you so ashamed of speaking about it? I just don't get it."

"In our society, talking about sex is a bit taboo."

"Taboo?" Inanna rolled her eyes, "What kind of nonsense is that? How do you reproduce and have fun without talking about sex? How do you teach people about it so that they don't make a mess?"

"We... don't really do that, as far as I know," he shrugged, "I mean, some do, some don't... We just don't discuss it much."

"Well, maybe you should," she pressed on, "I mean, there's really nothing wrong with talking about your desires. It's worse if you just keep them down. Next thing you'll say is that your 'society' doesn't accept nudity."

Andromalius was silent, knowing full well that Inanna wouldn't like his answer. However, she didn't need to hear it to understand.

"Really?" she crooked an eyebrow, looking at the hell stallion, "No nudity? That's worse than the snobism of Canterlot nobility, and that is saying something. But hey, at least you're making progress – you're nude right now."

The hell stallion had no idea how to reply to that. But it was true, he was completely nude, leaving everything on display. At the very least, he had to use four limbs to stand, so he wasn't flashing his manhood around for all to see. He really tried not to think about it too much.

"And everyone you ever interacted with is nude, too," Inanna continued, finding an opportunity to tease and teach him at the same time, "Even the guards. Sure, they wear armor, but they don't have anything where their stuff is. Even the princesses usually don't wear anything but their crowns and chest... things. Yes, even the rulers are nude, Andro."

He groaned, trying to make the mental image of princesses' open backsides disappear from his mind. However, a sentence repeated in his mind – the princesses are nude.

"See? Not such a big deal here," the succubus finished, "You better get used to it. Don't be afraid of popping boners either. They're counted as compliments."

"W-what?" Andromalius looked at her with bewilderment as heat rose in his cheeks.

"You heard me right," she let out a small laugh, "My, look at your face! So red I swear you could be a tomato in some other world!" unable to hold herself, she exploded with laughter, tears welling up in her eyes. She rolled on her back, her belly shaking as she guffawed. Andromalius couldn't help but look flustered, his ears down and his eyes turned away from the succubus.

"What did I do to deserve this weird world?" he said mostly to himself, rolling his eyes to the back of his head and sighing deeply.

Inanna continued to laugh for a good few minutes before she got a hold of herself and calmed down.

"Well... maybe it's time you accept this stuff," she said, wiping away the tears of laughter, "As fun as it is to see you so embarrassed of literally nothing that should be embarrassing, it'd be embarrassing for me to see you getting into awkward situations because of this," she looked at him more seriously, although a smile was still present on her face, "Besides, ponies would be weirded out if they knew you had these weird... views. You'll have to change them, considering that it's likely you'll have to spend the rest of your life here."

"...You make a point," he agreed, a defeated expression on his face, "But... just... how can I be nude all the time? In front of others?"

"You did a fine job being nude in front of the princesses, the castle staff, and a few others- actually, scratch that last one, you were dressed in cloak that time," Inanna listed, "You didn't really have a huge problem. So, just keep doing what you're doing and you'd be fine. And... can you tell me why you are ashamed of being nude?" she looked at him questioningly, "What makes you personally feel that way?"

"I... I don't know," Andromalius admitted, "I mean, I've never been around fully nude people. I'm just used to the fact that everyone is clothed."

"So, you don't really have anything against nudity as a concept, right?" Inanna suggested.

"I guess... not really," he replied, "It's just... unusual."

"It's good that there aren't real problems, then," the succubus nodded, "I suppose you'll just take your time to get used to knowing that no one's privates are covered. You know, something is only considered 'weird' if it's unusual. Being nude here isn't, so no one would even as much as bat an eye if you're walking around without any clothes on. And if it makes it easier, your tail is pretty thick and covers your balls as long as its down. So yeah, there you go, no nudity problem!" she grinned, "Anyway, seems like you're rested. Maybe it's time to go outside and see Canterlot?"

"I'm not sure if I can..."

"Oh, come on, no one's keeping you prisoner!" Inanna groaned, "You're a difficult person, did you know that? Just think about it... who would dare to stop you, a towering mountain of muscles? Act with confidence, and roads will be opened to you, that's my advice. Remember the talk we had?"

"Yeah," Andromalius nodded, "You're right... you're right too much," he chuckled.

"That's what I do," she replied with a wide grin, "I give you kicks in the butt you desperately need to act like a stallion, not a colt. I hope you'll remember these lessons, because I'm not gonna teach them each time you hesitate to do simple things."

Author's Notes:

As you can see, Andromalius' personality shifted from how I originally described him. To be honest, I don't think he even had much of a personality back then. Sure, he got angry or sad, but I don't really think that qualifies.

In any case, Andromalius wants to be careful in the world he found himself in. Sometimes, he's a bit too careful in his decision-making, but perhaps Inanna will make him more confident and less doubtful. We'll see!