2girls, akai_haato, akai_haato_(hololive_summer_2019), bad_pixiv_id, bare_arms, bare_shoulders, barefoot, beach, beach_mat, bikini, blonde_hair, blue_eyes, blue_sky, blush, breasts, chromatic_aberration, closed_mouth, day, eyes_visible_through_hair, hair_between_eyes, hair_bun, hands_on_own_cheeks, hands_on_own_face, head_rest, heart, heart_necklace, hololive, houshou_marine, houshou_marine_(summer), jewelry, koubou_(cowbow_kun), large_breasts, long_hair, looking_at_viewer, lotion_bottle, lying, multiple_girls, necklace, on_stomach, open_mouth, outdoors, red_bikini, red_eyes, red_hair, single_hair_bun, sky, smile, string_bikini, swimsuit, tent, the_pose, untied_bikini, virtual_youtuber, yellow_eyes