Desi Boys High School is the most famous school in Mansha City, where the top talents in the entire Mansha City gather. However, Degao also has a terrifying place known as the "Zinger Group", which is Class Z. Class Z is where students with key problems gather in the school, and it is a place where all teachers and students are frightened. However, a young male teacher recently arrived in Class Z. From then on, the chaotic life of Class Z began to change...