Rule 34 Dev - 1boy 1girl awa bikini black_hair blue_hair blush bracelet breasts cleavage green_eyes grey_eyes hair_ornament jewelry long_hair mermaid monster_girl mukoujima_takurou namiuchigiwa_no_muromi-san navel open_mouth ponytail seashell shell spiked_hair sumida-san swimsuit|4200558570