Furnace's Self-Cultivation

What should I do if I travel back in time to my own eunuch novel and become one of the villain's bosses? Lu Chen said he was not panic at all. He discovered that as long as he fulfilled his duty as a tool man and played the role of the furnace with peace of mind, he would be rewarded. What else is there to say? Licking it directly! Do you think I am your furnace? No, no, no, actually you are my furnace! Of course, why is it wrong to say that they are each other's furnace...