Things just aren't going well for Kotoko but her luck has to change for the better soon, doesn't it?

Kotoko blackmails Irie into helping with her final exams. Kotoko's friends start wondering where she lives.

Kotoko and Irie find themselves home alone for the summer. Homework brings them unexpectedly together.

Kotoko knits a good luck charm for Irie that seems to have the opposite effect.

Kotoko is determined to make a special memory with Irie before their high school lives are over.

Kotoko and Irie begin their college life. Kotoko feels threatened when a smart and beautiful woman sets her eyes on Irie.

Kotoko and Irie are challenged to a doubles match in tennis, forcing them to work together as well as giving them a reason to see each other.

When Irie agrees to go to the movies with Matsumoto, Sudo and Kotoko secretly follow them to ruin the date.

When Naoki moves out of the house to be on his own, Kotoko tries to find a way to spend more time with him.

When the adults are away and Kotoko must rush Yuki to the hospital, Naoki is nowhere to be found.

When Kotoko, Satomi and Jinko's Christmas plans fall through, Kotoko is left home alone on Christmas Eve.

As everyone starts working towards their dreams, Kotoko feels left behind when she still remains undecided.

When Mr. Irie is admitted to the hospital, it's up to Naoki to take over the company and decide whether or not he'll give up his new-found dream to become a doctor.

When Naoki commits to an arranged marriage for the good of his father's company, Kotoko and Yuko team up to get rid of his future wife.

Kotoko decides to start dating Kin-chan, and finds herself having an unexpectedly good time. Meanwhile, Naoki prepares for his wedding with Sahoko.

After Kin-chan's sudden proposal, Kotoko starts to seriously consider her future and her feelings about Naoki once and for all.