Seijuurou Akashi captains and plays point guard for both Rakuzan High and Team Vorpal Swords. Standing 173 cm tall, he features spiky red hair and distinctive vertical-pupiled eyes. His eye color signals his active personality: dual red eyes indicate his original self, while heterochromia—a red right eye and yellow-orange left eye—marks his alternate personality. He habitually drapes his team jacket over his shoulders instead of wearing it properly. Childhood pressures fractured Akashi into dual personas. His mother's death in elementary school and escalating demands from his prominent family forged a rigid upbringing obsessed with absolute victory. This alternate personality first surfaced during Teikō Junior High when threatened with defeat by teammate Atsushi Murasakibara. Characterized by extreme ruthlessness and a "winners take all" creed, it awakened his Emperor Eye ability to ensure triumph. Dominating his behavior, this persona dismissed teammates, abandoned team coordination, and addressed them disrespectfully by first names only. It once attempted to stab Taiga Kagami with scissors for defiance and threatened self-mutilation if his team lost. His original personality reemerged during Rakuzan's clash with Seirin High after Kagami and Tetsuya Kuroko countered his Emperor Eye. This version prioritizes teamwork, uses respectful last names, and bolsters teammates with encouragement. Following his first defeat against Seirin, he embraced loss as motivation for growth, becoming more approachable. He exhibited considerate actions toward former Generation of Miracles members, even earning the nickname "mother" from Daiki Aomine for nurturing reminders about health habits. During Team Vorpal Swords' match against Jabberwock, both personalities collaborated strategically. The original Akashi managed playmaking using enhanced court vision for pinpoint passes, while voluntarily ceding control to the alternate persona to maximize Emperor Eye effectiveness. In this game, the personalities permanently merged after the alternate self transferred his full Emperor Eye capability. This fusion birthed the "Complete Emperor Eye," which surpassed Nash Gold Jr.'s Belial Eye by predicting further into the future and synergizing perfectly with the original's tactical passing. Akashi's basketball prowess encompasses exceptional speed, ball-handling, three-point shooting, and strategic analysis reminiscent of shogi. As Teikō's captain, he led the undefeated Generation of Miracles and commanded respect from upperclassmen and Rakuzan's "Uncrowned Kings." His Emperor Eye predicts opponents' movements by deciphering physiological cues like muscle contractions and heart rate, enabling ankle-breaking maneuvers and defensive counters. He later unlocked the Zone state, amplifying his capabilities further.