One day, he receives a message and decides to return to Shanghai, where he sees a brothel standing on the old location of the Jingwu School founded by his master.

He faces the insurmountable task of rebuilding the Jingwu School while shouldering the responsibility of raising his master's orphaned son, Huo Dongjue.

Chen Zhen's friend, Xi Feiyang, was originally a teacher who came to Shanghai with a passion to serve his country.

Xi Feiyang realises that in such a chaotic era, the only way to survive is to resort to violence, so he gets involved in the criminal underworld and eventually becomes a powerful gang boss.

On the other hand, although Chen Zhen ultimately revives his master's legacy and restores the Jingwu School to its former glory, he is betrayed by his fellows and ends up badly injured.