Haruma

Haruma's backstory in Sakamoto Days involves being raised as an assassin at the Al-Kamar Orphanage, a failed JAA project to create Order members. Alongside other orphans like Uzuki, he was trained to be a killing machine and grew up with little normalcy, leading to his obsession with sports as a way to cope and assert his humanity. He eventually escaped the orphanage with Uzuki and others, forming the X's Organization to fight against the Order. Haruma was raised in the Al-Kamar Orphanage, a facility run by the JAA with the goal of creating elite Order members. He and his fellow orphans, including Uzuki, Gaku, and Kumanomi, were subjected to brutal training and experimentation from a young age. Haruma, along with Uzuki and other orphans, eventually escaped the orphanage. After escaping, they formed the X's Organization, an assassin group made up of those who were raised together, vowing to destroy their past and everything in their path. Haruma's fascination with sports serves as a coping mechanism. He frames it as a way to create rules and fight on an equal playing field, but it is also his way of convincing himself that he is still human and not just an assassin. His unique fighting style often involves turning battles into sports-like games, using his incredible strength to his advantage while adhering to a self-imposed set of rules to maintain fairness. This is evident in his fight against Shin, where he turned the battle into a bizarre game of sports.