Yuiitsu and Sei

Two worlds stand at the brink of collapse. One world's mana continue to decrease at a dangerous pace, slowly destroying the lands without anyone knowing it. Another has so much mana, that those who are weak to mana are slowly dying due to mana intoxication. The goddess could stand it no longer, so she made a choice, one that will change the two worlds forever. Shorter Synopsis: Op protagonist in fantasy world the end :V Warning: I'm a terrible writer and this'll probably give you cancer, so shoo! EDIT: This'll FOR SURE give you cancer, so shoo!