Yoshihisa Kira

Yoshihisa Kira was a participant in the real-life Btooom! game and is the father of Kousuke Kira. Along with Soichi Natsume and Kousuke, they formed an alliance early on in the game. After subjecting Kousuke to years of child abuse, Yoshihisa was killed by him out of resentment.

Appearance
Yoshihisa Kira is an obese, middle-aged man. His face is particularly thick, sporting small, sunken-in eyes, a large chin, large lips, and heavy eyebrows. He has black, frizzy short hair. His attire is comprised of a plain black shirt, covered with a dark, unbuttoned shirt, and light pants. Like any other player, Yoshihisa has an IC chip implanted in his left hand and possesses a bandolier, which he wears on his waist.

Personality
Yoshihisa, in regards to his relationship with Kousuke, is a very abusive and neglectful father. He despises Kousuke and, at times, has subjected him to child abuse out of spite. He is also very egoistical and intimidates those around him as a means to obtain his goals. Even more so, he has been shown to be very pessimistic, with little hope of escaping the island.

History
In the past, Yoshihisa has both sexually and physically abused Kousuke. At one point, while laying on the couch, he became irritated by his son skipping school to play Btooom! and beat him. His abusive behavior toward his son later on attributed toward Kōsuke's personality and criminal history.