hoshino koucha, arona (blue archive), plana (blue archive), blue archive, commentary request, highres, 2girls, alternate costume, black hair, black hairband, black one-piece swimsuit, black sailor collar, blue eyes, blue hair, blue halo, bow, breasts, closed mouth, colored inner hair, covered navel, cowboy shot, groin, hair between eyes, hair bow, hairband, halo, highleg, highleg one-piece swimsuit, light blush, long hair, looking at viewer, multicolored hair, multiple girls, neckerchief, one-piece swimsuit, pink hair, red halo, red pupils, sailor collar, small breasts, standing, swimsuit, white bow, white hair, white hairband, white neckerchief, white one-piece swimsuit