1boy, 1other, =3, abs, asymmetrical_hair, cup, drink, earrings, eyelashes, gakuran, gorozaemon_(housamo), greyscale, hair_bun, hair_over_one_eye, holding, holding_cup, holding_drink, horns, jacket, jewelry, katou_(katocut0), monochrome, muscular, muscular_male, o_o, oni_horns, open_clothes, open_jacket, open_mouth, other_focus, protagonist_3_(housamo), school_uniform, single_earring, sitting, surprised, swept_bangs, tokyo_afterschool_summoners, upper_body, white_background