Mikan Yuuki (結城 美柑 Yūki Mikan?) is Rito’s independent and reliable 12-year-old sister. Mikan takes care of most of the household work while their parents are away working and also watches over Celine. In contrast to her brother, she is very mature and does not hesitate to tease him, going as far as lying that they aren’t blood-related, but quickly retracting the statement and telling the truth.
Source: To Love-Ru Wikia
Original: To Love-Ru
Release Date: Late Aug., 2014
Sales Price: 9,800 yen about 88.85 USD