Rule 34 Dev - 1girl 3boys blue_hair brown_hair caffein crossover detached_sleeves gloves headphones highres holding_hands honne_dell lab_coat lolita_fashion long_hair midriff multiple_boys namine_ritsu navel necktie red_eyes silver_hair soune_taya trap utau very_long_hair vocaloid yellow_eyes yowane_haku|1587908907