1boy, 1girl, beniyuri_(kokuchou_no_psychedelica), black_hair, black_serafuku, chain, chained, cuffs, eye_contact, face-to-face, handcuffs, hetero, hikage_(kokuchou_no_psychedelica), kokuchou_no_psychedelica, long_hair, long_sleeves, looking_at_another, onoco, parted_lips, red_eyes, red_hair, school_uniform, serafuku, short_hair