Bleach: The Strongest Shinigami, Hitsugaya Toshiro

A peace-loving and well-behaved young man from society unexpectedly finds himself transmigrated into the world of Bleach, where he becomes Hitsugaya Toshiro. Originally intending to live a stable and uneventful life, he constantly finds himself confronted by those who seek to stir up trouble. Aizen endlessly proclaims his desire to stand atop the heavens, while Yhwach secretly plots to destroy everything and create a world for the Quincy. Left with no choice, Toshiro embarks on a path paved with mountains of corpses and seas of blood. Unknowingly, he finds himself standing before the throne, and when he looks back, all he sees is a landscape of withered bones.