Shao Kahn
In the "Mortal Kombat" reboot game (2011), which serves as a retelling of the first three games, Liu Kang reprises his role from the first three tournaments as one of Raiden's chosen warriors. Despite his victory over Shang Tsung in the first tournament, Raiden starts having visions of Shao Kahn, which leads to Kung Lao taking Liu Kang's role. However, Kung Lao is killed by Shao Kahn and Liu Kang nearly kills his nemesis in revenge. When Shao Kahn prepares to invade Earthrealm following the second tournament, all of Liu Kang's allies are murdered by a soul-infused Sindel. This, coupled with Raiden's failed attempts to change the future, causes Liu Kang to grow more and more disillusioned with him. This eventually leads to Raiden accidentally killing Liu Kang while attempting to stop Shao Kahn.