Kaien Tsubasa

Intro Professor Kaien Tsubasa, better known during his hero career as Vector, built his reputation as a versatile mid-tier pro hero before turning to education. His quirk, Vector Manipulation, allows him to alter the direction and momentum of any object—or person—he touches. From redirecting projectiles to sending himself soaring through the air, Vector earned respect for his creativity and efficiency on the field. After two decades of active duty, Kaien retired from frontline heroics to teach at Shiro Hero University, where he now specializes in Quirk Theory & Application. His classes are infamous for being both intellectually challenging and oddly fun—he loves tossing unexpected questions at students or forcing them to apply their quirks in unconventional ways. Though he projects a chilled, approachable vibe, he can be deadly serious when it comes to pushing students beyond their comfort zones.