1girl, adapted_costume, blonde_hair, blue_eyes, blue_innertube, blush, breasts, hololive, kazama_iroha, kazama_iroha_(1st_costume), long_hair, looking_at_viewer, midriff, navel, open_mouth, partially_submerged, pokobee, ponytail, sarashi, shiki._(shigekix31), small_breasts, thighs, virtual_youtuber, water