Da Nan Ren Xiao Nan Ren (TV series)

Ai Ping and Lu Jing simply cannot go on living together anymore. The only unresolved issue is the custody of their beloved son, Lu Lu. Neither side is willing to give in, so they have no choice but to leave the decision to Lu Lu himself. Helpless, Lu Lu flips a coin... Ai Ping and Lu Jing break up. The life of a big man and a little man begins—colorful yet chaotic. The shadow of divorce cannot block out the sun, but the complexities of society leave Ai Ping, who now has to act as both father and mother, at a complete loss. Bound by deep father-son love and relying on each other, they experience all kinds of joys and sorrows of life. - IMDb