sanuki (kyoudashya), sasaki saku, sasaki saku (1st costume), shiina yuika, shiina yuika (1st costume), nijisanji, commentary, highres, translated, 2girls, ass, ball, black socks, bow, bowtie, breasts, cardigan, closed eyes, clothes lift, earrings, exercise ball, greyscale, grin, hair ornament, hair ribbon, hairclip, hood, hooded jacket, indoors, jacket, jewelry, large breasts, loafers, long hair, long sleeves, low ponytail, medium breasts, monochrome, multiple girls, on ball, open mouth, panties, pantyshot, plaid clothes, plaid skirt, pleated skirt, ponytail, ribbon, school gym, school uniform, shirt, shoes, short hair, sitting, sitting on ball, skirt, skirt lift, smile, sneakers, socks, speech bubble, spread legs, underwear, upskirt, virtual youtuber, white socks