Yin and Yang Borrow Life

Master left me two things before he died. A Luban ruler and half of the second volume. The first volume is about building houses and bridges, and the second volume is about driving away evil spirits and suppressing evil spirits. People who have learned the second volume are destined to live alone all their lives, widowed, lonely and disabled. I happened to fall into that word "lonely". I'm not in a hurry. I have a ruler, a brother, and half an unfinished book. Who killed my master, who put Du Heng in two coffins, and who has been staring at me in the alley for ten years, I searched for them one by one. Under Lu Ban's sect, any debts must be paid.