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 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.
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 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 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.