1girl, adapted_costume, armpits, arms_up, bad_pixiv_id, bare_arms, barefoot, blush, breasts, cleavage, closed_mouth, dolphin_shorts, grey_tank_top, hair_between_eyes, hololive, houshou_marine, houshou_marine_(summer), koubou_(cowbow_kun), large_breasts, long_hair, looking_away, midriff, one_eye_closed, red_eyes, red_hair, short_shorts, shorts, sitting, solo, strap_slip, stretching, stylus, tablet_pc, tank_top, virtual_youtuber, white_shorts