kidanieru, kawashiro nitori, touhou, bad id, bad pixiv id, colored pencil (medium), marker (medium), painting (medium), traditional media, watercolor (medium), 1girl, backpack, bag, blue eyes, blue hair, cucumber, female focus, hair bobbles, hair ornament, hat, key, matching hair/eyes, no pants, one-piece swimsuit, randoseru, school swimsuit, short hair, solo, swimsuit, swimsuit under clothes, thighhighs, twintails, two side up