The Ring Of Seven Curses

A Dragon suddenly crashed into our main protagonist's school killing all of them. They all woke up to see their school in ruins in an unknown and strange world. It is the world of a game that our main protagonist used to play called LEGACY. Our main character, Kayden, whilst exploring an unknown dungeon, came across a throne with a ring called The Ring of Seven Curses which grants him 7 blessings and 7 curses. Having invested 8,435 hours into the game. Kayden uses his knowledge about the world to his advantage and finds a way back to their original world.