Yūki Mikan

Mikan Yuuki is a major character in the To Love-Ru anime and manga series. She is the younger sister of Yuuki Rito and seems to have a brother complex towards him. She is very hard-working and gets along with pretty much everyone.

Saibai Yuuki
Mikan's father, Saibai Yuuki, is a professional mangaka, or manga artist. He is 36 years old and works near where Rito and Mikan live. He is working on three mangas at the same time and thus is constantly trying to meet his deadlines, leaving only limited time for his family. Despite this, he loves Rito and Mikan very much.

Ringo Yuuki
Mikan's mother, Ringo Yuuki, is a fashion designer and scout. She normally works overseas, where she is very famous. She takes her work very seriously, to the point where as soon as she sees a pretty girl, she starts to size them up with her hands. She is highly observant, meaning she can read feelings on people's faces.

Rito Yuuki
Mikan is somewhat rude to her older brother but deep down she cares very deeply for her brother. She seems to want to help him out a little with his love life even though she called him a playboy for attracting so many girls.

It has been hinted several times that she may have feelings for her brother. These occasions are:


 * Chapter 104: Mikan is sick and Rito takes care of her. She jokes and says that they are not related by blood, which could indicate that she wishes that they were not related by blood so that they could have a relationship together (this is even more obvious in the 2nd OVA).
 * Chapter 073: Mikan misses spending time alone with Rito. When Lala flirts with Rito, she seems disgusted by it.
 * Chapter 141: Mikan blushes and gets nervous when Nana asks her if she loves someone, then becomes more so when she mentions Rito.
 * Chapter 157: At the very beginning, a friend of Mikan's asks her why she turns all of the guys down and then mentions her 'awesome brother'. Mikan immediately blushes and nervously asks why Rito was brought up. Later, Mikan is waiting in Rito's bed, waiting for Momo to show up, when a thunderstorm strikes. Rito, half-asleep, comforts her, and Mikan recollects a time when Rito comforted her in a storm. She then thinks about how his scent always calms her down. Basically, this entire chapter strongly hints at a brother complex.
 * OVA 5: When Mikan was infected by the pollen Momo and Nana spread out, her true feelings were revealed admitting that she loves Rito.

When they were children, they spent a lot of time playing together and putting up Christmas decorations. Mikan even states that before Lala came, she and Rito were closer.

Personality
As she is very hard-working and nice, she immediately accepts any friend of Rito's. Around Rito she tends to be a bit rude, sometimes entering the bathroom without knocking, or making fun of him when a situation is presented.

Golden Darkness (Yami)
Mikan is considered to be Yami's best friend. While Yami, seemingly despises Rito, she and Mikan are very close. The two are close, possibly because they appear to be around the same age.