Dad Has a System: the Rules of Counter-Killing Undercurrent Continues in the Final Volume

Top killer Jin Pen quits his job and becomes a nanny, but is targeted by a mysterious organization that wants to destroy his whole family. Just when he was holding his daughter and was helpless, a cold mechanical voice came from his head: "The fateful confrontation system has been bound. The current task is to use the most stupid way to kill the first enemy, otherwise my daughter will go blind within 24 hours."