1girl, blue dress, blue eyes, blue hair, blunt bangs, blunt tresses, blush, braid, brown headwear, butterfly hair ornament, cherry blossoms, collar, covering mouth, crown braid, dress, envelope, flower, hair ornament, hat, holding, holding envelope, light blue hair, long sleeves, looking at viewer, love letter, mole, mole under eye, official alternate costume, official alternate hairstyle, puffy long sleeves, puffy sleeves, solo, string, string of fate, twin braids, white collar, white flower