Haruchiyo Sanzu

Haruchiyo Sanzu ( ,Sanzu Haruchiyo) is the Vice-Captain of the 5th Division in Tokyo Manji Gang and is frequently seen as a supporting character in the whole series. In an alternate timeline, he becomes Bonten Bonten's No. 2.

Appearance
Sanzu is a young man with long rosy pink hair and slightly-droopy blue eyes with long eyelashes. He is usually seen wearing his Tokyo Manji Gang uniform, with a black mask and always has a calm look on his face.

As an adult, Sanzu has a long mullet that reaches to his shoulders and wears a blue purple formal suit. He no longer wears his black mask which reveals the two scars on both side of the corner of his lips. He also has a Bonten tattoo that can be seen on his right forearm.

Personality
As a teenager, Sanzu has a calm demeanor and rarely talks. He was extremely loyal and much nicer to those he follows and worships. However, it is later revealed that he is also quite manipulative and is exceptionally good at deceiving other people.

Sanzu is arguably one of the most mentally deranged characters in the series. Not only did he use a katana to slash his best friend, Yasuhiro Muto, he also dismembered and removed the organs and flesh off of his body, leaving behind only remains of a skeleton. As a result, the police had a hard time trying to figure out the identity of the corpse.He also shows no remorse for what he had done.

As an adult, Sanzu seems to be more extroverted, blunt, and loud. He is ruthless and displays psychopathic tendencies. Sanzu is also shown to be on many drugs, which is believed to have played a big part in his insane behavior and personality change. To this day, Sanzu is still extremely loyal and holds great admiration towards Manjiro Sano. He will not hesitate to cruelly kill off any traitors without mercy nor remorse.

Manipulating
Sanzu may appear to be a calm and trustworthy person but is actually very manipulative. He was able to manipulate Mucho for a very long time and killed him after he betrayed his king Manjiro Sano.

Etymology

 * The name Haruchiyo means "spring" (春)(haru) and "many nights" (千夜) (chiyo).

Trivia

 * The mask he is often seen wearing was given by Yasuhiro Muto to cover up his scars.