1girl, black_hair, blue_sports_bra, bout_for_beside_you_(project_sekai), breasts, closed_mouth, crop_top, hair_between_eyes, hair_ornament, long_hair, medium_breasts, midriff, multicolored_hair, navel, official_alternate_costume, omurais_kcp, project_sekai, purple_hair, shiraishi_an, sports_bra, sportswear, stomach