2girls 4boys ^_^ beard blonde_hair blush brother_and_sister brothers chibi closed_eyes crown facial_hair family father_and_daughter father_and_son fish_hair_ornament fukaboshi giantess hair_ornament heart heart_background hug i! king manboshi mermaid merman midriff monster_boy monster_girl mother_and_daughter mother_and_son multiple_boys multiple_girls neptune_(one_piece) one_piece otohime_(one_piece) prince princess queen ryuuboshi scales sharp_teeth shirahoshi siblings size_difference smile striped_tail tail teeth younger