Haruchiyo Sanzu/Relationships

Senju Kawaragi
Haruchiyo has a constrained relationship with Senju. According to Senju herself, he is indifferent toward her and her business with Brahman.

Takeomi Akashi
Takeomi is Haruchiyo's older brother who he operates Bonten with in the latest present timeline. However, similar to his sentiments toward Senju, Haruchiyo is indifferent toward him.

Manjiro Sano
Haruchiyo has known Mikey since childhood as his older brother was acquainted with Shinichiro Sano. They had an unconditional friendship until a mishap surrounding a broken toy triggered Mikey's instincts and urged him to inflict a chronic mouth injury on him. This occurrence changed Haruchiyo's behavior toward Mikey, and drove him to become his right-hand man in the Kanto Manji Gang, and eventually, Bonten.

Prior to Shinichiro's time-travel, Haruchiyo and Mikey's friendship was conditional, until the latter suffered a vegetative state for four years from a result of tripping from the second floor of his home by accident while playing a plastic plane toy. Because of this, Haruchiyo remained sane, and only received the scar on his left eye after getting into a fight with someone who disrespected Mikey's worst condition out of grief in this timeline.

Yasuhiro Muto
Haruchiyo was Mucho's Vice-Captain during their time together in Toman and admired him for the kindness he showed when he was fairly new. Due to his unpleasant history with his siblings, Haruchiyo sought a familial connection with Mucho and viewed him as a brother figure. Haruchiyo seemingly held a genial relationship with him, as they had joined Tenjiku together and went against Toman, until his manipulative intentions were revealed when he killed Mucho for his betrayal.