(at the beginning of the series) Sana Kurata is an 11-year-old child actress in the 6th grade that is the main star of the hit TV show 'Child's Toy'. Sana is a natural born leader who is very curious, stubborn, and loves to help others out with their problems. She's always cheerful, talkative, and full of spunk. Her family is made up of mother Misako Kurata, who is a famous author, and a man named Rei that she took in and made her manager. At school, she becomes enemies with a boy named Akito Hayama, who grouped up some of the boys to cause chaos in the classroom. She tries to find ways to beat Akito so that the boys stop interrupting the lessons, but that soon fails and they quickly become friends as Sana learns more about Akito's past.

Spoiler

During the course of the story it is revealed that Sana was a foundling adopted by Misako and her biological mother is Keiko Sakai. In the manga Sana develops a psychological issue as a child called, "Doll Syndrome" that causes her emotions to disappear for a brief time. Later in the series, Sana realizes she's in love with Akito Hayama which is revealed during a night with Asako.

Spoiler

In a 2009 manga one-shot called Deep Clear, Sana is 26-years-old, married to Akito and is pregnant with his child. She gives birth to a girl, whom she names Shuri.