1boy, 1girl, o, arm_support, bare_shoulders, bed, bed_sheet, bedroom, black_eyes, black_hair, black_shirt, blank_eyes, blue_one-piece_swimsuit, blush, breasts, brother_and_sister, brown_pants, closed_mouth, collarbone, comic, competition_school_swimsuit, cuddling, grey_eyes, grey_hair, hair_between_eyes, hamaken._(novelize), holding, holding_pillow, hugging_object, knee_up, looking_at_viewer, one-piece_swimsuit, original, pants, pillow, pulling, school_swimsuit, shirt, short_sleeves, siblings, sleeping, small_breasts, swimsuit, thick_thighs, thighs, two-tone_shirt, white_shirt