Kirari Tsukishima is a 14-year old junior high student who has a passion for eating. When she saved a turtle stuck in a tree, its owner,Seiji Hiwatari, gave Kirari a ticket to a SHIPS concert. She tries to get in and there are too many people in front so she goes in the staff entrance. She is met by a young man who gets hostile when she mentions Seiji's name. He rips up her ticket and she runs away. She ends up in the vent over the stage where she sees Seiji and the young man from earlier singing on stage. She falls onto the stage and sets off a cloud of white feathers. Kirari decides to become an Idol.

Kirari attempts to figure out ways to become an idol. Because her ideas are ridiculous, her friends Miyu and Sayaka show an article that SHIPS is holding an audition to find the next idol. Kirari rushes to the place and surprisingly figures out that this audition is for guys. She disguises herself as a male and enters the audition. Although Kirari's identity was discovered, her confidence and persistence allowed her to become an idol.

Kirari must compete with Ogura Erina in a cake commercial. The girl whose commercial appeals to the staff the most will be able to debut. Of course, Erina secretly tries to make Kirari lose.

Muranishi assigns Kirari a manager: Kasumi Kumoi. Before Kirari can progress as an idol, Kumoi asks for permission from Kirari's father to become an idol. To Kirari's dismay, her father turns her down. Kirari attempts to find many ways to convince her father to pursue a career in the entertainment world but fails. Seeing Kirari petitioning to become an idol on his way home, Kirari's father decides to approve her request.

Director Nezumi chooses Kirari's first job as an idol. Secretly, Erina switches the job to a more ridiculous and difficult task, helper to a group of amateur entertainers. Erina makes the task harder by telling whining and making direct lies at Tomy, the person who runs Kirari's 1st job location. Tomy, originally unsatisfied with Kirari trying to take his place during his shows, finally accepts her.

Muranishi eyes Kirari as a marketing model for a company called Rainbow Cosmetics. However, Kirari's unclear and strange mind of being an idol results in a rejection of her modeling for Rainbow Cosmetics. To help Kirari become a proper idol, Muranishi assigns Kirari as the manager of SHIPS for a day.

An influential CD producer has his eyes set on Kirari and even decides to debut her CD, but Kirari can't sing. Her destructive singing voice causes her to be kicked out by every CD producer. Na-san, with some background on singing, teaches her how to become a better singer. With a slim chance of Kirari ever debuting her first CD, Seiji finds a perfect method for Kirari's singing debut.

Kirari performs live on TV with SHIPS for the first time! Erina, trying to take place of Kirari, kidnaps Na-san with taiyaki and ships Na-san into a zoo far away. With the live show about to begin, Kirari desperately searches for Na-san. As the show runs late, Erina convinces the producers to let her perform. Instead, SHIPS will take place until Kirari arrives. Na-san finds his/her route back and reunites with Kirari just in time for the live show.

During Kirari's latest shooting, a mysterious magician attacks Kirari and SHIPS with a variety of magic tricks and sea creatures. The magician reveals himself as Arashi. He convinces Kirari to quit her idol work and fulfill the promise they made when they were in their childhood. Surprisingly, Kirari has no memory of such events.

As Kirari becomes more recognized by people in the entertainment world, going to school becomes more challenging as the media and her fans would crowd around her. Muranishi assigns Kirari a new school for idols that SHIPS attends. Erina, also in her new class, tries to make Kirari's first day a nightmare. Erina, however, only makes her recognition more positive.

Kirari will be the leading role of a new drama, "The Sonata of Love and Youth". However, since there will be a kiss, the director has to choose between Seiji, Hiroto, or Arashi. But, Arashi plans to take Kirari's first kiss and to change the drama. I wonder what's next...

Since Kirari never had a boyfriend before, she cannot interpret her role properly in the pure love drama. What's this? Seiji asks her to a date?

Kirari's insecurity about the kiss in the drama interferes with her other idol activities, but with Seiji's help, she finally gains determination to go through with the climatic scene. When the day really comes, however, will she truly really give up her first kiss to Hiroto?

In order to promote "The Sonata of Love and Youth", there will be a competition between Kirari and SHIPS to determine who can sell the most CDs. Over time, everyone starts to take sides over who will win, and Kirari, overwhelmed by the pressure, loses her will to fight against her friends.

Kirari's lack of resolve to fight against SHIPS causes her to quit being an idol! After the premiere of the drama starring her, will she have second thoughts? Who will win this confrontation?

There's news that auditions for a Morning Musume member are coming up! Kirari is inspired by the group that she ends up joining the audition. Even though she always passes the rounds, Hiroto and Seiji soon intervene, saying that this MoMusu audition is a fake. Surprisingly, Morning Musume's leader, Hitomi Yoshizawa, had come in disguise and forces the "judges" to admit defeat.

Kirari attends the idol swimming competition with Erina, SHIPS, Arashi, etc. Kirari is not very competitive at these sporting events, making winning a very challenging task for her team. Erina, who fares worse, refuses to go into the water as water will only destroy her appearance. As the competition goes on, Erina's shortcut to protect herself from contact with water only makes their team lose more.

Two weeks of film shooting had suddenly been canceled, meaning that Kirari can go spend time with her friends Sayaka and Miku. However everywhere they go, fans will appear and chase the girls around. Sayaka and Miku start to think that Kirari cares for the fans more instead of her friends.

Kirari and Erina have to do a joint segment where they will solve a mystery in a deserted hotel. Of course Erina wants to get all the credit and tries to trick Kirari again.

Kirari's older brother, Subaru, has come from America. Envious of Kirari's idol status, Subaru secretly disguises himself as Kirari to take over one of her jobs.

When Kirari will be part of Nojo's Top Idol competition, she meets Todou Fubuki of rivaling Higashiyama Co. Fubuki claims that Kirari does not have the potential of being a perfect idol.

The first challenge of the tiebreaker will be to create a wedding scenario with SHIPS. Kirari naturally chooses Seiji, but she doesn't know why her heart pounds for Hiroto.

The second challenge is to create a dress to show to the fans. Fubuki is naturally an expert, while Kirari is hopeless. Hiroto helps Kirarin and she soon finds the perfect things needed for her dress.

The final challenge is to write lyrics for a song. After having gone out with Hiroto to the beach, Kirari seems to have found inspiration, feelings of love. And around now would be the perfect time for Kirari to confess her feelings to Seiji. But why is Kirari not able to do it?

Fubuki has already finished her lyrics while Kirari is running out of time! Hiroto tells Kirari that she express her feelings for Seiji. However, Kirari finds herself in a predicament, she loves Seiji, but she always gets nervous around Hiroto. Finally, Kirari's lyrics become her feelings for Hiroto.