1girl 2boys ;d abs ahoge aqua_hair artist_name ball beachball bikini bird blue_eyes blue_sky breasts brown_hair bucket bunny_hair_ornament dated day dog frown goggles goggles_on_head hair_ornament holding holding_sword holding_weapon innertube looking_at_viewer male_swimwear multiple_boys muscle navel one_eye_closed open_mouth pink_hair rod scar seagull side-tie_bikini sky small_breasts smile spiked_hair standing swim_trunks swimsuit swimwear sword tree van(yoroshigu) weapon white_bikini wristband