happyundergate, hozuki momiji, oyama mahiro, onii-chan wa oshimai!, commentary, highres, 2girls, :d, artist name, black background, black hair, blue hair, blush, brown eyes, brown hair, eye contact, fireworks, grey hair, grey kimono, hand on own knee, holding, holding fireworks, japanese clothes, kimono, looking at another, multicolored hair, multiple girls, open mouth, pink kimono, red eyes, sash, short hair, simple background, smile, twitter username, two-tone hair, yukata