mizunomoto, c.c., euphemia li britannia, kouzuki kallen, kururugi suzaku, lelouch vi britannia, nunnally vi britannia, code geass, bad id, bad pixiv id, 00s, 2boys, 4girls, aged down, blush, chibi, child, donut hair bun, grabbing another's hair, hair bun, happy, holding, holding another's hair, holding own hair, kindergarten, kindergarten teacher, kindergarten uniform, multiple boys, multiple girls, simple background, smile, thighhighs, time paradox, white background