Takashi Mitsuhashi arrives in Chiba as a transfer student, deliberately abandoning his ordinary school life to reinvent himself as a delinquent. He dyes his hair blonde to stand out. Standing 181 cm tall with an athletic build, he leverages his physique for combat.
Extremely self-centered, Mitsuhashi prioritizes his own safety above all else, readily sacrificing others for personal gain. He possesses a cunning, strategic mind, frequently employing dirty tricks and psychological tactics in fights. His fighting style relies on agility and evasion, using speed to dodge attacks; he becomes visibly surprised or annoyed when opponents match his speed and force him to block. Despite his abrasive exterior, he occasionally reveals a softer side, particularly when angered by injustices against those he cares about.
He forms a partnership with fellow transfer student Shinji Itō, their dynamic evolving from initial antagonism into a complementary and formidable duo. Mitsuhashi develops a romantic relationship with Riko Akasaka, the daughter of an Aikido dojo owner. She uniquely sees his vulnerable side and exclusively calls him "San-chan," referencing the alternate reading of his name's kanji. Threats to Riko provoke fierce, protective reactions from him.
Mitsuhashi frequently antagonizes Imai Katsutoshi, a rival school's delinquent leader, exploiting Imai's lack of intelligence for amusement. He also mentors younger student Yūichi Sakakigawa, nicknaming him "pisshead" after an incident where Sakakigawa urinated on Mitsuhashi and Itō while they were trapped. Despite the crude nickname, Mitsuhashi acknowledges Sakakigawa's potential.
His family background reveals complexity: his father is a weak-willed liar, while extended relatives are hypocritical. Mitsuhashi displays sporadic familial loyalty, occasionally interacting with his cousin. Key triggers include mocking his appearance, stealing his possessions, ruining his food, or threatening Riko.
Throughout his journey, Mitsuhashi transitions from pretending to be a delinquent to embodying one, gaining notoriety for tactical prowess and resilience. Despite minimal academic effort, he demonstrates untapped intelligence when motivated. His development includes gradually accepting deeper loyalties, evident in confronting severe threats like sexual violence.