The OVA covers the first volume of the manga, equivalent to TV episodes 1-6. It relates Sana's troubles with Hayama at school as a result of the "oyakodon baka" situation and culminates when Hayama's dad and sister realize their mistakes thanks to Sana's efforts.
Sana Kurata, the sixth grader with an agent, struggles to deal with her class full of troublemakers.
Sana continues to confront Akito over his school behavior and is surprised by his reaction.
Sana learns about Akito's weakness and tries to exploit it.
Akito has stopped acting up due to Sana's blackmail, and another boy vies for the "boss monkey" title.
Sana gets a glimpse of Akito's family life.
Sana gets the Hayama family to watch her new TV drama about a family with problems similar to theirs.
Sana learns of Asako and Rei's past together.
Sana takes a field trip to help her forget why Rei has been acting so weird.
Sana copes with her surprising first kiss.
Sana meets Aono, Tsuyoshi's younger sister. She decides to give Aono a pleasant surprise, over Akito's objections.
Sana becomes a little more grown-up about Asako and Rei, and the Hayamas have a family emergency.
Rei signs Sana up for too many commercials, and causes her to forget a promise she made to her friends.
Tsuyoshi misses school. Sana soon learns his parents are divorcing.
It's the first day of middle school, and Sana meets a new girl, Fuka, in the bathroom. They discover they have much in common and quickly become good friends
Fuka tells Sana why she slapped Akito, and about how Akito ruined her life by stealing her first kiss in kindergarten.
Sana tells Tsuyoshi that she doesn't believe in love anymore because of what happened with Rei.
Sana leaves to film a movie in a secluded mountain area.
Sana and the crew arrive at the movie set location in the mountains.
Fuka asks Akito to be her boyfriend, and bribes him with sushi, so she won't lose face to her old friends.
Naozumi confesses his feelings to Sana.
Sana gets attacked by Naozumi's fans.
Upon finding out that Akito is going out with her best friend, Fuka, she comes to realize her true feelings towards him.
Sana's mom visits her on the set and tries to cheer her up.
Sana faces a dangerous situation while filming a movie scene inside the burning mansion.
Sana deals with tabloid rumors of her and Nauzomi dating.
Naozumi reveals the true nature of his rationship with Sana on live television broadcast, and also exposes her feelings toward Akito.
Sana and Naozumi leave for New York to star in a Broadway musical together.
Strange incidents keep happening to Sana and Naozumi upon their arrival in New York.
Rei goes to Hollywood to find Mr. Hamilton, while Sana and Naozumi begin rehearsals.
Sana and Naozumi discover the truth about the mysterious ghost they've been seeing.
Sana, Rei and Naozumi spend their first night at the hotel and Naozumi encounters the strange man from before.
Brad reveals why he is terrorizing Sana and Naozumi.
Brad tells Naozumi the background of his relationship with Secil.
Secil deals with feeling unwanted and unloved due to her injury.
Yuko has decided to use Naozumi as a tool to get fame.
Secil runs away after overhearing a conversation between Yuko and Naozumi.
Naozumi and Sana weigh their options after Naozumi learns of his mother's true intentions.
Naozumi and Sana reconsider their decision to return to Japan and instead meet with the Hamilton family.
As Yuko's luck runs out, she and Naozumi fight over her treatment of him.
Gary and Naozumi attempt to adapt to their newfound relationship.
Sana and Naozumi defy a new law prohibiting singing and music.
Sana and Naozumi recall to their time in New York on their return to Japan.
Naozumi and Sana re-adjust to life in Japan.
Sana's friends welcome her back and pay her a visit where she announces that she and Naozumi are officially a couple.
Naozumi is suspicious of his new manager, Riho.
Sana objects to script dialogue that requires her to call another character a "devil".
Fuka's temporary blindness allows her to see Sana and Akito's feelings toward each other.
Fuka and Akito assess their relationship.
Sand decides to quit acting and return to school.
Sana reflects on her feelings toward Akito and Naozumi.
In this fantasy episode, Hayama's father builds a mother robot.
Sana's fan club is disappointed by her lack of acting work.
Sana doesn't understand the subject she's trying to teach for her new job.
Sana gets a strange letter from someone using her name.
Sana and Zenjiro are reunited in the new series "Kodocha".
Takaishi and Fuka are now both single,. Can Sana and Zenjiro play Cupid and help these two get together?
Asako is getting ready to leave for London but Rei is not ready to give up his career for her. Is this the end of their relationship?
Misako's ex-husband is back again to ask for money. But this time, he is serious. At least, he thinks he is...
It's Akito's sister who falls in love with the 'perfect' guy. But it seems that the guy is a massive playboy, and is dating many other girls...
Sana wants to form a karate club for Akito's sake.
The new karate club member, Nakao, cannot find any meaning in his existence and chooses to rot away in the north wing with the blackboard erasers.
Sengoku's evil plot to expel Akito is revealed.