Two male protagonists. The four little ones meet again. At first Ci Nian was kidnapped. Later he met Xu Huaian. In the same school, the four little ones met again. Later they reconciled. After that. Again and again. The outrageous case involves them, and they have the courage to solve the case. Have the courage to take on responsibility and not be afraid of shrinking. Move forward bravely. Make their friendship stronger
Purpose: youthful inspiration