On the first day of school, Ryūji discovers that he and Taiga, the meanest girl in class, share a secret: each loves the other's best friend.

A rumor starts that touching Taiga leads to good luck; Yūsaku gets some interesting news from the student council president.

The love triangle of Ryūji, Minori and Taiga reaches a crisis point when true feelings are realized during the school's Christmas Eve party.

When Yasuko reconciles with her parents, the truth about Ryūji's father is revealed, inspiring him to have a traditional wedding with Taiga.

Kitamura brings a gigantic bento to school: His parents are on a business trip, so his grandma is taking care of him for the time being. While everyone else is happy to be allowed to eat from this bento, Takasu considers it a challenge to his own housewife skills; during the following days he tries to make creative special bentos in order to "beat" his mysterious opponent... before he learns what making bento is ultimately about.