Love Poison

Ko, Tuk, Teng, and Sek volunteer to host a concert to raise money for their community's project organized by Ball. An old friend of Ko's father comes to pay a visit.

The boys raise the money for the temple quickly, but Ko's father is duped by his once friend into giving up all the money under the promise of repaying the sum. However, the old friend disappears and drops all communication. Meanwhile, Ball's attention to Ko is frustrating Teng who is jealous after learning Ball once had pursued Ko.

A mother-daughter duo begin to interfere with TengKo and TukSek. Butsaba, the mother, is a member of Teng's fan club and uses her money to gain access to Teng. Kaojee, the daughter, seeks out the attention of Tuk even after she realizes there is a relationship between Tuk and Sek.

Despite the jealousy that has arisen with the appearance of Ball, Butsaba, and Kaojee, TukSek and TengKo are able to find their own ways of repairing their trust and moving forward.

A bully on the soccer team begins harassing Ko for dating Teng. Kaojee begins to copy everything Sek does to try to win over Tuk.

Misunderstandings between the boys threaten to break up the band. When Teng is feeling at his lowest, Butsaba confides that she sees Teng as a son, after her own passed away years ago. Butsaba pushes Teng to make up with Ko and not to give up.

The boys finally finish raising the 100,000 Baht they needed for the donation. Ball reveals that he hasn't been pursuing Ko, but rather trying to connect with their friend, Eclaire.

Kaojee finally admits the truth to Sek that she and Tuk are not romantically involved. After both couples have made amends and the money for the donation secured, the boys put on one more performance at the town celebration, sponsored by Butsaba.