Tsukishima Shūkurō

Tsukishima Shukuro is a subordinate and former member of the organization Execution. His power, the Book of the End, allows him to write his own presence into the past of anyone he touches with his blade, whether a living being or an inanimate object. Thanks to this ability, he is able to become a close friend, mentor, or even a family member to his victim, completely rewriting their memories. Tsukishima grew up in solitude and was raised by Kugo Ginjo, whom he considered his only mentor and the meaning of his existence. His cold-bloodedness and sociopathic nature allowed him to ruthlessly manipulate people to achieve his goals, yet behind this mask lay a deep emotional dependence on Ginjo. After his mentor's death, he tried to take revenge on Ichigo Kurosaki, but died himself. Later, already as a soul in the Soul Society, he unexpectedly helped Ichigo in the decisive battle against Yhwach, returning his broken bankai.