On the first day at Su Zaizai's high school, a rainy encounter between her and a charming schoolmate leads to a romantic mistake.

Hoping to be closer to her crush, Zaizai persuades a friend to get Lurang to join the Drama Club. Later, she confronts inappropriate behavior on a bus.

Zaizai and Lurang continue to help each other with their grades. As the school's field day draws near, an injury abruptly leaves Zaizai out of the games.

An aquarium trip deepens the bond between Lurang and Zaizai. Meanwhile, with an academic contest on the horizon, a rumor spreads across the campus.

After summer break, the students enter a new phase of their high school journey. The closeness between Lurang and Zaizai lands them in hot water.