Tie into Someone Else's System? I Am Trying My Best to Collect the Wool!

In an era when gods and immortals are not born and all things are driven away by ghosts, As a "dark web" killer, Bai Jinchuan received a very simple assassination mission, but when he was about to take action, he accidentally bound the legendary system! But the host of this system is actually the assassination target! So, assassination turned into protection, Even when he discovered that the crisis he created could become a system task and receive rewards, He gathered up the wool with all his strength! "No... You ghost, why is it you every day? Do you think I won't recognize you if you change your waistcoat? It's okay for a female ghost to harm me! I'm tired of seeing you!" "Really~ Then I can let the slave family come and have a taste of you~~" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.