During the tournament, he defeated Bruce, who had been taken in by the Mishima Zaibatsu. Lei entered the King of Iron Fist Tournament 2 to confront Kazuya about the Zaibatsu’s Mafia connections. Lei picked up where his partner left off on their investigation into the International Mafia’s money laundering activities and discovered that the organization had connections to Kazuya Mishima of the Mishima Zaibatsu, even deploying an accountant to deliver documents to Kazuya on the doomed plane Lei's partner was killed on.
Prior to the King of Iron Fist Tournament 2, Lei’s partner was killed when a fight involving himself and a contract killer targeting Bruce Irvin broke out on a plane, causing it to crash.
Lei Wulong was the Hong Kong International Police Force’s number one detective.
