Masumi Sera

A skilled Jeet Kune Do practitioner and self-styled high school detective, this martial artist recently transferred to Teitan High School after returning from living in America. Having recently settled into a Tokyo hotel, she joined Ran and Sonoko’s class following a suspicious, near-perfect deduction during a murder investigation. Possessing combat skills that rival Ran's, she also displays a suspicious awareness regarding Conan’s true identity, hinting at deeper connections within the unfolding mystery.