1girl, 4koma, 3, bkub, clenched_hands, comic, earth_(planet), flying_sweatdrops, greyscale, hair_ornament, hair_scrunchie, halftone, hand_on_own_cheek, hand_on_own_face, monochrome, neckerchief, planet, poptepipic, popuko, sailor_collar, school_uniform, scrunchie, serafuku, shirt, short_hair, short_twintails, speech_bubble, talking, twintails, two_side_up