Makoto and Saki have grown closer and Makoto has become friendly with students from their class as well, which makes Ryuji's heart uneasy. One day, on the way home from the aquarium with them, Ryuji notices something.

The trio have stopped eating lunch together. Meanwhile the second-year students receive their career questionnaires. While each of them is agonizing, the school is preparing for the cultural festival.

Saki rushes to the hospital because her grandmother collapsed. Her father also rushes back to Japan which means she can spend Christmas with him. Meanwhile Ryuji also proposes a promise for Christmas to Makoto.

On Christmas Saki happens to see a certain person get in a taxi. While she desperately chases after the taxi, Makoto is on the way to Ryuji's. Two people who weren't meant to meet still run into each other...

Saki devises a plan to help Makoto and Ryuji make up. While the two are working on that, Saki also has an unexpected encounter.

Due to his father's work, Makoto goes to meet his grandfather for the first time.. While spending time with him, Makoto begins to sort through his own feelings. Then, with a hidden resolve in his heart, he decides to go home.