Azami Suou

Suou Azami (周防 薊, アザミ) is a vague character, who seems to have a connection with Kento Ozu and his other underling, but rather negatively. His name means thistle in Japanese.
Azami's black hairstyle is a lot like Hotei Taketa's hairstyle, but messier. He has snake and octopus tattoos from the back of his neck to his right arm, and has a tattoo of the illuminati symbol on his neck. Without his mask reveals a large scar across his mouth. He has sly, narrow eyes. His height is also around the same as Kirishima.

Azami is a rather quiet, vague but seemingly dangerous individual to at least Ozu. He seems to have talked to his underling, but doesn't reply to Ozu's questions, implying that he doesn't talk unless its somewhat important enough for an answer. He has a rather fearsome and dangerous vibe to where Ozu seems to fear him. However, a year ago he was more talkative and approaches Ozu to help him.

He seems to be somewhat associated with Yoshino, and has a GPS specially targeting towards her for reasons yet to be known. He also likes to settle things quietly and quickly and he doesn't like to spend time on things he didn't aim to do, as he finds them boring and a waste of time. He also has great fighting skills, almost rivaling if not better than Kirishima's.

Azami is also for some reason in a goal of kidnapping Yoshino and killing Renji and Kirishima in order to get to her. Whether or not he's involved with Akishiba is unknown.

Azami is rather a non-talkative person, so hence, his relationships with others are very vague, and are often known via the other talking about him in 3rd point of view. He is deeply secretive and personal about his intentions and only reveals it to the person he wants to deal with. He is also mercilessly brutal towards people who think they can take advantage of him.

Kento Ozu
Ozu is under Azami's orders, but the two seems to be on bad terms. He fears the latter for being one without emotion nor dialogue but glare, and feels that Azami is oddly scary. Ozu complains that he feels forced that Azami is willing to even associate with the thugs.

However a year ago, Azami was nicer to Ozu, and even approached him to help him. Therefore, something happened between them that causes Ozu currently to fear him.

His Underling
Unlike with Ozu, his other underling doesn't seem to mind Azami's silence nor the orders as much. They seem to be on better terms than Ozu is with him. He asked him to gather the thugs to watch over Kirishima.

His underling respects Azami as in commands, and he seems to take his job under him seriously as long as he is paid to do so.

Miyama Kirishima
It is likely that Azami arrived to Osaka to have a connection with Miyama Kirishima via his underlings; Ozu exposing him instead of himself, and his other one to gather the thugs to get information of him. Kirishima is aware of him, and told Nao Shiota that Ozu's superior (possibly mentioning Azami) likes to use him to get Kirishima's information.

Azami eventually reaches to Kirishima, but their conversation was short due to Azami is aiming for Yoshino, not him. Eventually this provokes Kirishima, and they get into a long, intense fight. Azami commented on Kirishima that he thinks of himself too highly, and calls him a third-rate criminal that only attracts goons.