Rule 34 Dev - 4girls balloon bicycle black_cat black_hair blonde_hair braid brown_hair cat colored_skin getiao green_skin hair_bobbles hair_ornament kasei-san kyukkyu-kun madotsuki monoe monoko multiple_girls notebook pencil piano_keys poniko sekomumasada_sensei shitaisan takofuusen tokuto-kun twin_braids uboa yume_nikki|6318866385