Takeo Goda, a kind but ugly student, rescues a pretty girl named Rinko Yamato from being molested. She starts to like him for what he did.

Takeo tries to figure out the appeal with his best friend Makoto, who rarely shows interest in girls despite being popular with them.

Makoto helps Takeo and Rinko confess their feelings for each other.

Rinko becomes upset when she and Takeo overhear her friends, Aya and Nanako, badmouth Takeo behind their backs.

Makoto is visited by his older sister Ai, who is shocked to hear Takeo has a girlfriend, having had a crush on him herself. The next day, Ai meets Rinko herself and sees Takeo make an effort to try to understand her.

Ai encourages Rinko to tell Takeo how she really feels, later telling Makoto about how she fell for Takeo. Later on, Rinko sees a shooting star and makes a wish.

Takeo joins a judo club, but this causes him to lose time with Rinko.

Makoto helps Takeo with his plans for Rinko's birthday, but learns his father has to undergo surgery.

Takeo keeps thinking about Makoto and tells Rinko about his father's surgery. Understanding Takeo's wishes, Rinko encourages him to go visit Makoto and stay by his side during his father's surgery.

Takeo and Rinko go on a picnic in the mountains, and end up getting lost.

Rinko invites Takeo and his friends to join her and her friends to the beach.

Hearing about Rinko wanting to go to the same college as him, Takeo asks Makoto to help him prepare for an entry examination so he can go to Rinko's university.

Takeo and Rinko hold a surprise birthday outing for Makoto, with Takeo treating both of them.

Takeo becomes concerned over Rinko turning down a trip to an amusement park. Rinko reveals she is cautious about a rumored jinx that causes couples who go there to break up.

While at the amusement park, Ai comes close to confessing to Takeo, but instead she encourages Rinko to ignore the jinx and watch the evening parade with Takeo.

When Takeo takes on runner Mariya Saijou as a disciple, Rinko is concerned that she might be a rival for Takeo's affections.

While preparing for a Christmas party, Takeo learns that his friend Osamu Kurihara hopes to confess to Nanako, with Takeo and Rinko deciding to do what they can to get them together.

On New Year's Day, Takeo's birthday, Rinko and Takeo kiss for the first time.

Rinko hears from Takeo's mother, Yuriko, about Takeo's birth and how he became so overprotective of her.

With Valentine's Day approaching, Rinko invites all of her friends to make chocolate for their loved ones.

Takeo comes across a girl named Yukika Amami, who has had a crush on Makoto since kindergarten.

Yukika continues to struggle talking directly to Makoto.

During spring break, Rinko takes up a part-time job at a cake shop, catching the attention of the shop's assistant, Kouki Ichinose.

Takeo starts questioning if it is alright to be with Rinko, but he eventually proves himself worthy of her love.