1boy, 1girl, arm_up, blush, chisuke, freckles, gag, gagged, hair_ornament, hairclip, hand_on_another's_chest, letter, limited_palette, long_sleeves, looking_away, lying, messy_hair, multicolored_nails, on_back, one_eye_covered, original, paper_on_head, school_uniform, second_button, serafuku, short_hair, sideways_glance, simple_background, string, string_of_fate, sweat, upper_body, yellow_background