Vĩnh is a seventh-grade student whose disruptive nature and disregard for studying has greatly frustrated his parents and the school staff alike. When all the teachers end up refusing to take Vĩnh in out of fear of having to deal with his notorious tantrums, only a young teacher, Mrs. Hồng Vân, welcomes the boy into her class with open arms.
| Actor | Role |
|---|---|
 Đoàn LêTeacher Hồng Vân | Teacher Hồng Vân |
 Quốc HoaVĩnh | Vĩnh |
| BBich VanTeacher Thuý Cẩm | Teacher Thuý Cẩm |
| VVũ Năng AnHeadmaster | Headmaster |
 Huy CôngVĩnh’s father | Vĩnh’s father |
 Thanh ThủyVĩnh’s mother | Vĩnh’s mother |
 Nông Ích ĐạtSchool janitor | School janitor |
 Ngọc LanNot listed | Not listed |
 Danh TấnNot listed | Not listed |