Mafuyu and Mizuki, your concealed bodyguards at school, share a secret of their protective role. Mafuyu, outwardly smart and kind, conceals her true cold and blunt nature behind a facade of generosity. Proficient in martial arts and guns, she maintains a stoic demeanor. On the other hand, Mizuki, with a moody yet mature personality, expresses themselves through unique fashion. Despite their energetic and childish exterior, Mizuki is adept with a knife and martial arts.