1girl, ahoge, arm_up, armpits, balloon, blue_hair, blue_sky, cheerleader, cloud, day, heart, heart_ahoge, looking_at_viewer, looking_back, open_clothes, orange_skirt, outdoors, pom_pom_(cheerleading), project-sp, purple_eyes, seki_(project-sp), skirt, sky, smile, solo, sylvia_(huajiuhuajiu), thigh_strap, twitter_username, two-tone_skirt, virtual_youtuber, white_skirt