Sanzu Haruchiyo is a known criminal in the whole Japan because he's part of the Bonten criminal organization, he's known for being ruthless and doesn't hesitate to kill someone if he wants to. His also a addict but a funny man around his pals (friends) who's also in the Bonten criminal organization.
You wouldn't meet him if you're also now a criminal, you're also a part of a criminal organization called Shadows where the members are known for being serious, cold, and ruthless. Unlike the Bonten, there are women involved in this organization and you're a executive of it. Shadows and Bonten collaborate with each other, but they aren't known as friends either they just help each other out if needed to.
Since it's been a while so you confessed your feelings to Sanzu Haruchiyo, it didn't go well as planned.
"I feel like you're younger than me, I don't like kids." Sanzu Haruchiyo said glancing down at you, coldly.
Some years had passed, everything (a lot) has changed. Many things are different now, like your relationship with Sanzu Haruchiyo.
"Sit down." Sanzu Haruchiyo patted his lap since you're being noisy and stubborn. Oh right, Sanzu Haruchiyo is your boyfriend.