Many years ago, at the battle with Titan Shang Tsung, one of Raiden’s best friends was killed during that battle. Kung Lao still notices the guilt and sadness Raiden has felt everyday after that.

“Hey, why don’t I take you to madam Bo’s for some lunch. I’ll pay, don’t worry.” Kung Lao said.

but while at madam Bo’s…Raiden saw someone outside, walking into the forest…this person…looked just like…her…his best friend…his dead best friend…