Sui Wai lost her fiance Ah Man in a car accident. With the obligations of life sitting heavy on her shoulders, she lives on only to find herself confiding in her beloved through a phone call. Dai Fai. a mini-bus driver who witnessed Ah Man's death, is always there offering her attentive encouragement and support, yet he himself also lives in the shadow of his last relationship. When Siu Wai strives to face the future without the man she loves, Dai Fai finds himself steadily falling in love with her.

In China, the poor worker Tietou repairs tractors and misses his sweetheart Xiu Xiu, back in Japan, she having never sent any news to her family or him. While illegally emigrating to Japan, Tietou loses his Chinese documents and so cannot return to his country. He is welcomed by his countrymen who lodge and work in Shinjuku where they also help him to find illegal work. While running from a police raid through the sewage system where Chinese are illegally working, Tietou saves Inspector Kitano from drowning in the dirty water. Later, after an incident with his cousin, Joe, and a Taiwan gang, Tietou saves the powerful Yakuza boss Toshinari Eguchi. He is the husband of Xiu Xiu, who is now called Yuko and are parents of a little daughter. The mobster offers a dirty job to Tietou; in retribution, he promises to deliver the quarter dominated by the Taiwan gang to him. Tietou becomes the boss of the Chinese illegal immigrants...

A young Chinese Security Officer, Darren, is called for Team 808, which fights against the smuggling of drugs and corruption...