Nijo accidentally witnesses two men having sex late at night. The next day, he recognizes one of them at his university, a man named Chidori, and is shocked to learn he is a member of the school staff. Fascinated by the contrast between Chidoris professional daytime demeanor and the intimate face he saw at night, Nijo becomes increasingly infatuated with this duality. He begins talking to Chidori at his part-time job, noticing his more alluring and uninhibited nature. Finding Chidoris smile intoxicating, Nijo cannot help but want to uncover even more of his hidden faces, setting the stage for a tense and obsessive relationship that blurs the lines between student and staff. The story unfolds within a university setting and explores themes of voyeurism, secret identities, and the dangerous pull of seeing someones true self.