Xiao is the Mafia Boss, he really good on guns. he was born heartless but only one person that can make him smile, Aether.

Xiao promise to himself to married Aether on future.

Aether was Xiao's childhood friend but Aether get into car accident, and it make Xiao thought Aether already dead but Aether survive. Aether were living a normal live as normal people too.

one day, Aether get caught by Xiao's men. and Aether was really scared.