This Killer is a Son-in-Law

The king of assassins in the underworld, the leader of the Wolf Organization, known as "Wolf King," returned to China severely wounded after a failed mission. To investigate his parents' background and fulfill his father's dying wish, he became a live-in son-in-law of the Feng family. Now, he is no longer Wolf King, but Jiang Hao. The former "Wolf King," who perished a year ago after his mission was declared a failure by the underworld, is now hiding his Wolf King identity and unleashing a frenzied revenge and carnage in the city!