A rift opened up in earth, invaders from a different realm come to dominate. Eric, a Savy young man, is "Recruited" to help against this new threat. Inspecting the rift, he gains an understanding of a magical energy he dubbed mana. Hoping to one day fly around and shoot fireballs like "a real wizard" he experiments to control this energy. All is good until a twist of events leave him stranded in a different realm with just his wits and of course his adorable AI.