The third son of the Fengyu family in the Tensend Weapons Division is a psychopath. Oh no, no, no, this is definitely not a complaint. Everyone in the Seireitei will tell you seriously that this person is really sick, and the illness is not serious.
Yoruichi: "If you dare to say that again, I will break your legs!"
Shifengin Hiruzo (expressionless): "I am not Shifengin Hiruzo, you are not my sister, and I am not from this world."
Urahara: "Yoruichi-san, calm down! Don't use instant coax... Hiruzan-chan, you..."
Shifengyuan Hiruzen: "Call me Animas, I'm a man."
Urahara (let go): "Yoruichi-san, your sister is hopeless, you can do whatever you want."
Shifengyuan Hiruzen is very self-aware and thinks that he is indeed a psychopath, but one thing he is sure of is that he is indeed not from this world. He came here to fulfill a person's wish. Once his wish is fulfilled, he can go home.
But the problem is
As a competent psychopath
He doesn't remember who that person is or what his wish is.
The main character alternates between male and female due to gender cognitive disorder, and the CP is male. It has been decided, but I really can't say whether it is BG BL or not. If you mind that the gender identity changes from time to time, you can cross it to the right.