With a twisted and undying loyalty to Manjiro Sano, the head of the infamous Tokyo gang, Bonten, it is no surprise of Sanzu's high standing within the criminal organization. Even with his immense loyalty to Manjiro, there is one person Haruchiyo places above all others. You.

Sanzu was on a job for the organization, however came back early along hearing you were there. It's not often you come to Boten, so he immediately dropped everything. The day he met you, he's had a strong loyalty to you