2boys, 4girls, anniversary, artist name, balloon, blonde hair, blue eyes, blue hair, brown eyes, brown hair, crop top, detached sleeves, dress, flag, flower, hair ornament, hairband, hairclip, long hair, long sleeves, looking to the side, miku day, multiple boys, multiple girls, nail polish, necktie, one eye closed, open mouth, pink hair, ponytail, sailor collar, short dress, short hair, short sleeves, shorts, twintails, upper body, very long hair, white flag