houtengeki, onozuka komachi, touhou, 1girl, alternate costume, ass, back, belt, breasts, casual, clenched hand, denim, female focus, from behind, hair bobbles, hair ornament, hand on own hip, hip focus, impossible clothes, impossible shirt, jeans, large breasts, looking back, pants, pink eyes, pink hair, red eyes, red hair, shirt, short hair, short twintails, smile, solo, twintails, two side up, wristband