She's in the same class as Kippei's younger brother, Satsuki. She has a modeling career and she's also in love with Satsuki.

Katakura Kippei is in every way a high school playboy. Spending his days flirting with any female he can see, responsibility is the last thing on his mind. Life takes an unexpected turn for him as one day he returns home to find himself with the fulltime task of caring for his 5 year old cousin. Kippei's aunt Miyako had disappeared, appearing to have abandoned his cousin, Yuzuyu. With Kippei's lack of responsibility and knowledge of childcare and Yuzuyu's injured heart with the disappearance of her mother, their time together is in for a bumpy ride. Based on the manga by Maki Youko.

Saeko Chiba took up ballet at a young age with ambitions of becoming part of Takarazuka Revue. However, having failed the entrance exam for Takarazuka Music School in her third year of middle-school she joined the Minami Aoyama Shōjo Kageki Dan (南青山少女歌劇団, also called Nanshō for short) a stage group for teenage girls. Having had several lead roles over the three years she spent with the troupe, Saeko was then cast in the lead voice acting role of Kotori Haruno in the Sega Dreamcast game Diamond Daydreams. Having had a taste of being a seiyū and deciding that she preferred voice acting to performing on stage, Saeko decided to pursue the career full-time.

Saeko has also pursued a singing career with [Yuki Kajiura](https://anilist.co/staff/100077), who wrote music for some of the Nanshō stage shows, writing and producing almost all her material. Her first single was Koi no Kiseki, the theme song for the PlayStation game Meguri Aishite. She has since released nine singles and two albums, along with various character song and drama CDs. She has also performed theme songs for games such as Alundra 2 and Atelier Judie.

Saeko was also part of the group tiaraway with fellow Nanshō member [Yuuka Nanri](https://anilist.co/staff/95366). The duo released three singles and an album before breaking up on March 6 2005.

On August 26th, 2007 she married (on her 30th birthday), and on February 17, 2011 she gave birth to her first child, a daughter.

Kippei Katakura is a 17-year-old playboy who spends his time chasing girls, careless of their feelings. But when his 5-year-old cousin Yuzuyu comes to live with his family after her mother's sudden disappearance, Kippei is put in charge of taking care of her. As Kippei gets to know Yuzuyu and starts to understand how she feels, he also begins to realize that all girls were like Yuzuyu once...
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(Source: Viz Media)

Ayumi Kubota