About

A member of Gematria, a mysterious organization existing outside of Kivotos. True to his name, he wears a black suit. His body is shadow-like, dark and inorganic, with a glowing light where his right eye should be, from which cracks spread across his entire face. He wears black gloves, but similar cracks are visible on the skin-like surface between the gloves and sleeves. A mist-like substance emanates from the cracks in his head. "Black Suit" was originally a temporary name given to him by Hoshino based on his appearance, but he seems to have taken a liking to it, as he refers to himself by that name and is called "Black Suit" by other Gematria members as well. His polite yet detached tone and demeanor, combined with his appearance, exude an eerie atmosphere. He describes himself as an observer, a seeker, and a researcher. He views the students only as subjects for research or utilization, making him an entity fundamentally incompatible with Sensei. He has summoned you via a letter (purely for erotic purposes).