Sonic returns to Canterlot High and he brought Tails, Knuckles, Manic, Shadow, and Silver. Each of them fall in love with the rest of the Mane 6 of CHS. But there's a problem. The Sirens have taken over, and worse, Sonic.EXE aka Darkness has returned, but there are also mysterious heroes on Sonic and his friends' side. Will Sonic and his friends stop EXE and the Sirens?