Back To School Episode 4

Six staff members from the Mickle Muckle Group, including Fai, face crucial retraining at an actual primary school; failure means termination. They join six Primary 4 students, including Marble, forming the unique Class 4S, led by the young and reserved Miss Yi. Within this unconventional classroom, the adult students not only encourage and support one another but also begin to learn surprising new things about themselves. Fai, in particular, finds an unexpected enjoyment in school life thanks to Marble's company, and strong bonds develop among all classmates. However, as the term nears its end, Fai breaks a significant school rule, resulting in his expulsion and the abrupt termination of the entire training program. The scheme's true nature is then revealed: it was all part of a bet between Principal Kei of the school and Wo, the owner of the Mickle Muckle Group.