2girls, 4koma, 3, arms_behind_head, bkub, bow, comic, greyscale, hair_bow, hair_ornament, hair_scrunchie, halftone, long_hair, lying, monochrome, multiple_girls, neckerchief, on_back, on_grass, pipimi, poptepipic, popuko, sailor_collar, school_uniform, scrunchie, serafuku, shirt, shoes, short_hair, short_twintails, sidelocks, skirt, sky, speech_bubble, talking, twintails, two_side_up