Food Is My Superpower

Lila Moore transmigrates into a supernatural apocalypse novel. Zero superpower, she's cannon fodder. Lila clings to male lead Xavier Hale. Xavier has a dangerous "pollution ability", avoided by all. Only Lila approaches him. This 'useless' girl gets stronger the more she eats. Xavier suspected her, but she stood by his side, wondering if she's a hidden boss. Lila realizes her 'no superpower' may be the ultimate ability. Xavier sees her as his only salvation.