Yuki Mikan is Rito’s independent and reliable 12-year-old sister in the manga series, “To Love-Ru. Mikan is the more responsible sibling, compared to Rito, but also frequently taunts him and lacks respect for him. This results in Rito resenting her as has taken care of her in times of need and has shown her generosity, like nursing her back to help after she developed a fever and giving her a Christmas present.