Honkai: I Picked Up a Seele at the Start

Yun Fu Yu thought he'd transmigrated into a tragic past—beside the Death God of a fallen civilization. When he reunites with Seele, hope blooms: maybe he can rewrite her doomed fate. But reality fractures around him. Ancient beings recognize him as something inhuman, a child of the 'Tree' who fell with a meteor eons ago—yet he has no memory of it. Now the Shadow of the Dark Trickster, devourer of worlds, stirs. As cosmic horrors close in and his true nature awakens, Yun Fu Yu must uncover what he really is before everything he's saved crumbles into oblivion.