Han Guang, a corporate slave of a programmer, dies suddenly after an all-nighter and wakes up in the cultivation world as a walking BUG. He uses a while loop to build his foundation and blows up the latrine, then uses try...catch to catch heavenly lightning, only to leave the sect leader bald. He writes beauty-filter code for his cold senior sister and gets hunted down for it. When he discovers that the Heavenly Dao System stays alive by devouring programmers' souls, and that he himself is the reincarnation of a programmer from three thousand years ago, he decides: To hell with cultivation! He fires back by writing an infinite loop for the Heavenly Dao: "Cultivating on a 996 schedule? I'm ending the world with Ctrl+Alt+Del today!" (System: You have unsaved Dao companions. Force shutdown?)