I Devour Everything

In a world where demons are rampant, humans retreat behind high walls. When civilization was shattered, Li Fei emerged from the sky, devouring everything and evolving infinitely. Devour the demon [Black-winged Giant Bat] and obtain demon wings. Swallow the food [Rotten Finger] and gain strange powers... Swallow the weapon [200mm orbital electromagnetic gun] and gain the power of technology... Devour the B-level contractor [Electric Light Boy] and inherit his abilities... … Wait! People should stop eating, right? !