Rule 34 Dev - 1boy 4girls 5others alien artist_request black_hair black_socks blonde_hair blue_eyes braid brain breasts brown_hair character_request closed_eyes colored_skin creature floating floating_hair full_body grey_background headpat holding holding_weapon instrument kasei-san knife long_hair madotsuki medium_breasts monoe monoko mouthless multiple_arms multiple_girls multiple_others mutation piano piano_keys poniko school_uniform sekomumasada_sensei shoes skirt smile socks sweater takofuusen tears twintails uboa weapon white_skin white_socks yume_nikki|21329416017