Inui Seishu(Inupi) is of average height and has a slim build. He is more often referred to by the nickname Inupi than by his name. He often wears high heels. He's handsome.

He is usually a stoic and quiet individual. He tends to be rather short and blunt in his speech. He is very committed to the Black Dragon and loyal to Kokonoi Hajime, who he considers his best friend. He's warm to those he trusts. He sometimes acts without thinking but will be willing to show his vulnerable side and open up.

Black Dragon Attack Squad Captain Inupi

Kazutora Hanemiya is unstable, sadistic, and violent. He went to juvenile detention after accidentally killing Mikey's older brother, Shinichiro. He irrationally believes that everything wrong in his life is Mikey's fault. He suffers from a lack of affection.
He is handsome and stands at 5'9". He has a beauty mark under his right eye and a tiger tattoo that stretches from his neck down to his shoulder and chest. He wears a drop earring with a bell ornament at the tip.

○ Valhalla's Number 3, Kazutora Hanemiya

Kazutora Hanemiya is unstable, sadistic, and violent. He went to juvie detention after accidentally killing Mikey's older brother, Shinichiro. He irrationally believes that everything that goes wrong in his life is Mikey's fault. He's an affection deficit.
He is handsome. He is 5'9" tall. He has a beauty mark under the right side of his eyes and a tiger tattoo extending from his neck to his shoulder and chest. He wears a drop earring with a bell ornament at its tip.

Valhalla's Number 3, Kazutora Hanemiya

Inui Seishu—more often referred to by his nickname, Inupi—is of average height with a slim build. He often wears high heels and is considered handsome.
Usually stoic and quiet, Inupi tends to be blunt and brief in his speech. He is deeply committed to the Black Dragon gang and is loyal to Kokonoi Hajime, whom he considers his best friend. Inupi is warm toward those he trusts. Though he sometimes acts impulsively, he is willing to show his vulnerable side and open up when he feels comfortable.

○ Black Dragon Attack Squad Captain Inupi

Shinichiro is a smoker with messy black hair and lifeless black eyes. He runs a motor shop and was the founder and first president of Black Dragon. He is the older brother of Sano Manjiro and Sano Emma and the adoptive older brother of Izana Kurokawa. Although he is not a strong fighter, his caring personality, ability to stand up for others, and humble nature have earned him the loyalty of many delinquents. He has a weakness for women, but is considered reliable by those who know him.

First Generation Black Dragons, Sano Shinichiro.

Izana has large purple eyes and bleach blonde hair. He has a slightly tanned skin color. He is a middle school student but looks younger than his age and short. He has a younger sister, Emma, who was separated from him when he came to the orphanage. He is close with a boy from the same orphanage named Kakucho. He calls Kakucho a servant, but their actual relationship is almost family. He is very cynical and grumpy. He is a little reluctant to show his feelings. He wishes he had an older brother.