Is the Japanese social background reflected in the Shinjuku incident real?

The Japanese social background reflected in the Shinjuku incident is real.

"Shinjuku Incident" is an action movie invested by Emperor Entertainment, produced by Jackie Chan, written and directed by Er Dongsheng, and starring Jackie Chan, Daniel Wu, Naoto Takenaka, Masaya Kato, Xu Jinglei, Fan Bingbing and others.

The film tells the story of the rise and fall of a generation of gangsters. Although the characters in the film are fictional, every example comes from real events in Japanese Chinese society. The film was released in Hong Kong, China on April 2, 2009.

Extended information:

The plot synopsis of "Shinjuku Incident":

In Northeast China in the 1990s, Tietou and the girl Xiuxiu were in love. Soon, Xiuxiu returned to Japan as an orphan from World War II and was never heard from again.

Tietou, who was worried about Xiuxiu, smuggled himself to Japan, took refuge with his fellow countryman Ajie, and lived a life of fearful illegal work with a group of Chinese stowaways. At this time, Xiuxiu had changed her name to Yuko and was married to Wakato Eguchi Toshinari, a member of the Japanese gangster Three Peace Club.

Tietou was disheartened after seeing this scene with his own eyes, and since then he has determined to do everything possible to make money and stay in Japan. Their method of making money soon touched the interests of the Tainan Gang, which eventually led to Ajie's right hand being cut off.

Tie Tou follows Tainan gang boss Gao Jie and accidentally learns of a gangster vendetta plot, in which he and a group of friends are inevitably involved.

Baidu Encyclopedia—Shinjuku Incident