Jiang Shangyin, who studied music in the United States, had to work as an instruction director at a technical school in Chinatown, Thailand, as compensation because he got into trouble with local gangs in the Golden Triangle.

This technical school has only four majors, one is a Thai massage major composed of a group of Muay Thai masters, a beauty and hairdressing major takes Shamat as the highest aesthetic standard, and the other is a model etiquette major for both men and women. , and the cooking profession of giving up all food routines and specializing in various curries. Although the four majors seemed a little unreliable, in order to survive, Jiang Shangyin had no choice but to take a chance and come to the school. As a result, Jiang Shangyin and the principal had a minor misunderstanding during the interview, which turned Jiang Shangyin from a "returnee from overseas." Music Teacher” became “Gangster Godfather of Deportation.”

So how to survive among a group of rebellious teenagers and weird teachers became Jiang Shangyin’s biggest test. Moreover, the most troublesome thing for Jiang Shangyin is that besides his daily work, he also has a "waste ally" Shi Feilou who is unreliable and has no backing. Shi Feilou has a crush on the principal's daughter, Teacher Sun.

Shi Feilou’s job is as a car washer. He is a strange young man with a kind heart but wretched behavior. So the appearance of such two inconspicuous duo in this dimensional technical school full of Thai style will inevitably trigger a series of ridiculous stories.