Seong No-jin

An assassin named Tae-goo is offered a chance to switch sides with his rival Bukseong gang, headed by Chairman Doh. Tae-goo rejects the offer that results in the murder of his sister and niece. In revenge, Tae-goo brutally kills Chairman Doh and his men and flees to Jeju Island where he meets Jae-yeon, a terminally ill woman. Though, the henchman of the Bukseong gang, Executive Ma is mercilessly hunting Tae-goo to take revenge.

Quiet, intelligent, solemn and recently dumped by his girlfriend, graduate student Lee Weon-san takes a job at a literary magazine, ostensibly to supplement his income, but really to get close to the editor - the reason he’s now single. The editor, unaware of who Lee is, takes a shine to him and makes him his personal assistant.