2girls, ahoge, artist_name, barefoot, camisole, chito_(shoujo_shuumatsu_ryokou), cuddling, greyscale, hair_down, hand_in_another's_hair, head_on_chest, long_hair, mitou_kana, monochrome, multiple_girls, shoujo_shuumatsu_ryokou, sitting, sketch, sleeping, thought_bubble, yuri, yuuri_(shoujo_shuumatsu_ryokou), zzz