haruharu sensei, eri (blue archive), kanoe (blue archive), rena (blue archive), tsumugi (blue archive), blue archive, 4girls, black bra, blonde hair, blush, bra, braid, breasts, brown hair, closed eyes, green hair, grey hair, gym shirt, gym uniform, hair bobbles, hair ornament, hair over one eye, halo, hat, jacket, large breasts, long hair, long sleeves, looking at viewer, multicolored hair, multiple girls, official alternate costume, open clothes, open jacket, open mouth, purple eyes, red eyes, red jacket, shirt, shoes, shorts, side braid, simple background, sitting, smile, sneakers, socks, streaked hair, tail, track jacket, twintails, two side up, underwear, white background, white hair, white shirt, white shorts, white socks, witch hat, yellow halo