| + Kurata Misako (Mama) |
Misako is not Sana's biological mother (see the secret page), but she loves her just as much (if not more) as she would if she were. The two of them don't really have the most.. conventional mother/daughter relationship. (How many mothers and daughters do you know who hit eachother with plastic hammers? @.@) Misako doesn't coddle Sana - she believes that Sana is smart enough to figure things out for herself. That, or she will be able to learn something from the situation.
Misako also believes that it is very important to be truthful with Sana. Never does she try to hide the fact that she is not Sana's biological mother. She actually informs Sana of this when she is quite young. Misako was widely criticized for this, but she still believes that it was for the best.
She provides a loving and supportive home for Sana, but without smothering her.
| + Sagami Rei |
Rei is Sana's manager. Sana saved him when he was homeless - she brought him into her home, essentially saving his life. Rei believes he is eternally in her debt for this, so he becomes her manager and boyfriend (for a period of time). He wants to be the greatest manager he can be for Sana - he often gets carried away and ends up going overboard to achieve this.
Rei cares a great deal for Sana; she is almost like a daughter to him. He constantly worries about her. He has also made it clear that she comes first. At one point he nearly sacrificed his relationship with Asako for her. Rei is willing to indulge any whim Sana might have - he wears sunglasses all of the time just because she wants him to. As Rei once said, Sana is the most important person in his life.
| + Sakai Keiko |
Keiko is Sana's biological mother. She abandoned her when she was a baby (see secrets). Sana seems to feel and behave rather neutrally towards her. She doesn't bear any ill feelings toward Keiko for abandoning her - Sana is actually grateful to Keiko for having her. However, she doesn't seem to want much to do with her. As far as Sana is concerned, Misako is her "real" mother.
| + Sakai Mariko |
Mariko is Keiko's daughter and Sana's half sister. Sana was very excited to learn that she had a little sister, and immediately wanted to meet her. The two of them and Keiko spend a day at the amusement park together, but Sana keeps their relationship a secret. Mariko is a big fan of Sana's, and watches her on tv all of the time (this does lead to a bit of trouble at one point..). Though Sana never tells Mariko that they are siblings, she does treat her with great care and affection.
| + Shimura |
Shimura is the household maid/servant. She does most of the cooking/cleaning around the house. I think Shimura is somewhat like a grandmother to Sana. She's very kind and caring, and often takes care of Sana when Misako cannot. She also frets over Sana a great deal.