1other, 3girls, 4boys, akiyama mizuki, aoyagi touya, aqua hair, asymmetrical bangs, bag, bangs, birthday cake, blazer, blue hair, box, cake, cardigan, character doll, closed eyes, closed mouth, cup, dark blue hair, diagonal-striped necktie, disposable cup, food, gift, gift box, grey cardigan, grey hair, greyscale, hair between eyes, hair down, happy birthday, hatsune miku, holding, holding cup, holding gift, holding stuffed toy, jacket, kamishiro rui, kamiyama high school uniform (project sekai), long hair, long sleeves, miyamasuzaka girls' academy school uniform, momomo (m0 3), monochrome, multiple boys, multiple girls, on chair, ootori emu, open clothes, open jacket, open mouth, orange eyes, orange hair, party popper, pink cardigan, pink eyes, pink hair, plaid, plaid skirt, project sekai, purple eyes, purple hair, sash, school bag, school uniform, shinonome akito, shiraishi an, short hair, shoulder sash, sitting, skirt, standing, star (symbol), string of flags, stuffed animal, stuffed toy, table, tenma tsukasa, under table, vocaloid, white background, wonderlands x showtime (project sekai), yellow cardigan, yellow eyes