Sen'ichi Kurashige

Kyo's science and homeroom teacher at Maihama Minami High School; Kyo frequently calls him "Kurage". He is the sponsor for the Swim Club. He later proposes to Mizusawa, but the two do not get married before the Maihama server is reset. He is probably not a normal Meta‐Body because he cannot go out of the school, and there is another apparition of him existing Shizuno's homeroom teacher. He was an engineer of the quantum technology before he became a Meta-Body.

(Source: Wikipedia)