4girls amakase_miharu asakura_nemu bell bikini blue_eyes blue_hair braid brown_hair choker cloud da_capo da_capo_i day game_cg green_eyes green_hair imageboard_desourced multiple_girls nanao_naru non-web_source one_eye_closed outdoors red_hair saitama_nanako short_hair side-tie_bikini_bottom sky swimsuit tsukishiro_alice twin_braids water