Pat and Pran have been enemies from childhood as a result of their families' rivalry. However, Pat's sister, Pa, makes a deal with Pat to stop the violence between him and Pran leading to a secret truce between the two.
A shoulder injury threatens Pran's ability to play at the upcoming rugby match. Meanwhile, Ink's arrival pulls Pat's attention away from the bus stop project.
With the music contest forthcoming, Pat gets Pa's advice on pursuing Ink. Her words, however, give him some unexpected insight that has nothing to do with Ink.
After their kiss on the rooftop, Pran begins avoiding Pat and refuses to talk to him. Getting desperate, Pat decides to join the Architecture boys' service trip to try to reconnect with Pran.
Pat and Pran enter their sophomore year of university. The architecture students begin a new project to put on a play, Kwan and Riam, which Pat decides to audition for.
After learning the true nature of their parents feud, Pat and Pran leave town together. They reunite with Tong and Junior who they met during the architecture service trip last year.