High School Frenemy

Saint and Shin, who were once good friends, are reunited when their troublesome classes are combined at school.

Something in the past makes Shin refuse to accept Saint back as his friend. While in school management, Sung joins Jan as a dual homeroom teacher for the most problematic class; Class 2.

Thep Burapha and Udon Phithak get into a big fight. Saint, who has just been elected as class president, must take responsibility for the chaos in order to avoid even bigger chaos between them.

Ken, Knot, and Nate team up with Jeng, the leader of Dragon Fang, to ambush Shin as revenge for the death of his brother, Jom. As they mistake Shin for Tsunami, the real Tsunami comes to the rescue.

Saint the 'Tsunami' managed to save Shin, but Jeng would not stop until he destroyed Shin's life. Chadjen asks Saint to protect him, while Sung threatens Jeng to stop approaching his students.

Things in Siamwit School get worse when rumors that Shin killed someone and was dealing with a mafia gang reached the parents' association, putting him at risk of being expelled from school.