A frustrated and ordinary office worker trapped in a dull, repetitive life suddenly discovers a shocking secret about his past: he is the son of a legendary professional assassin. As he uncovers the truth about his father, he realizes that the deadly instincts and extraordinary abilities he possesses are not a coincidence. Now gifted with seemingly superhuman reflexes, precision, and combat skills, he must leave his miserable routine behind and confront a violent world he never knew existed.
