Not much to say other than Title explains it the best. No Pairings determined. Harry Potter is useless, Dumbledore is annoying, among things.
Link, the Hero of Time, Hero of Termina, a general adventurer and has been on more adventures than he can count, but due to outside forces, he arrives in the land of the Percy Jackson world.
What happens when you throw in the idea of Stellaris, fuse it with Mass Effect, throw in a pinch of Halo, DOOM, and base the main race from LOZ? Madness.
Story of OC gets sent/transported into Minecraft.