1boy, 1girl, bare_shoulders, black_gloves, black_hair, black_pantyhose, character_name, container, dated, fingerless_gloves, forehead_protector, gloves, grisaia_(series), grisaia_chronos_rebellion, hair_between_eyes, hair_ornament, hairclip, happy_birthday, holding, holding_sword, holding_weapon, katana, koizumi_isuka, long_hair, multicolored_hair, night, night_sky, open_mouth, outdoors, pantyhose, red_eyes, red_hair, red_scarf, scarf, sky, solo_focus, star_(sky), starry_sky, streaked_hair, sword, v-shaped_eyebrows, very_long_hair, weapon