Yu Ji-An, codenamed [Sev], an S-class agent of “Lest,” a top-secret government-run assassin organization. As the youngest agent to successfully complete 300 missions, he finally achieves his long-awaited retirement. Ji-An is finally able to carry out the modest “healing bucket list” he has been preparing for 20 years. His first item on the healing list after retirement: Earn money through legitimate means without killing anyone. “Boss, I can start working at a convenience store right away. I’m the kind of person who always completes the tasks assigned to me.” However, contrary to his desire to live quietly while fulfilling this utterly ordinary dream, unpredictable incidents and a suspicious woman keep getting in his way. An assassin’s second life, fraught with hardship and adversity. Will S-class killer Yu Ji-An be able to achieve ordinary happiness without getting his hands dirty? (Source: KakaoPage, translated)