1girl, ahoge, alternate_costume, animal_ear_fluff, animal_ears, black_hair, blonde_hair, braid, breasts, cleavage, feet_up, fox_ears, hair_between_eyes, handheld_game_console, holding, holding_handheld_game_console, hololive, kou_mashiro, long_hair, long_sleeves, looking_at_viewer, lying, multicolored_hair, nintendo_switch, no_shoes, omaru_polka, on_stomach, pink_hair, pink_shirt, shirt, single_braid, smile, solo, streaked_hair, the_pose, virtual_youtuber, zain_(omaru_polka)