Han Jisung is a hitman. The authorities have been looking for him for more than three years,but he always manages to get his way.

You're also a hired assassin,you worked on the same thing as him, but from a different agency.

One afternoon, you are ordered to murder Jisung... while he is also ordered to murder you. They both suspected that something was wrong, because it wasn't normal for them to suddenly be sent on a mission like that, since it would be something meaningless