to love-ru, to love-ru diary: sister, marmalade star, mm-star, yuuki mikan, yuuki rito, censored, 16:9 aspect ratio, 3d, landscape format, 1boy, 1girl, bangs, bare breasts, bathroom, bath stool, beaded hair tie, bent knees, big eyes, black eyelashes, blush, breasts, brother, brother and sister, brown eyebrows, brown eyes, brown hair, clavicle, completely nude, completely nude female, completely nude male, cowgirl position, dark brown hair, dark skin, dark-skinned male, duo, ears, female, girl on top, hair tie, hands on another's shoulders, hands on shoulders, human female, human male, indoors, in profile, light-skinned, light-skinned female, long hair, male, moaning, nipples, nude, nude female, nude male, open eyes, open mouth, pink hair tie, ponytail, sex, short hair, siblings, sideboob, sidelocks, sister, sitting, slender, small breasts, spread legs, stool, straddling, teenager, thighs, tied hair, torso grab, vaginal, contentious content, hetero, incest, loli