4koma, 6+girls, ahoge, blush, book, breasts, casual, cleavage, closed_eyes, comic, dog_tags, eyebrows_visible_through_hair, greyscale, hair_ornament, hairband, hairclip, holding, holding_book, large_breasts, long_hair, long_sleeves, monochrome, multiple_girls, musical_note, open_mouth, shirt, smile, sweater