Rule 34 Dev - 1girl 3boys ahoge androgynous blue_hair caffein chibi cigarette crossover formal green_eyes hat highres honne_dell long_hair mini_hat mini_top_hat multiple_boys namine_ritsu ponytail red_eyes red_hair silver_hair smoking soune_taya suit top_hat trap utau very_long_hair vocaloid yellow_eyes yowane_haku|1804022298