Oops, I'm a Little Bit Smart

There has been a recent disaster in the fairy world, and an unscrupulous profiteer has emerged. Bai Feng: "I am specialized in overcoming tribulations. One is a thousand, two are 800, and three are 666. Buy three and get one free. I will give you the best experience in overcoming the tribulation. If you want it, please queue up." The Dragon King of the East China Sea raised his arms and shouted: "Tianpeng, I have reserved six places. Why don't you buy three and get one free! Give us two more!" At this time, Qingqiu Fox Emperor finally squeezed into the group of immortals: "Tianpeng, I will make an appointment for three..." Immortals: "I also want to make an appointment! I also want..." Li Jing, the captain of the Nantianmen Inspectorate, suddenly came over: "Hey! Hey! Hey! Nantianmen will stop operating without a license! If found, we will strictly investigate and deal with it!" However, in private, he secretly said: "Brother, my eldest niece is going to go through a catastrophe, look..." Bai Feng suddenly smiled and waved his hand to signal everyone to calm down: "My fellow immortals, don't panic, come one by one, I'm a good boy and the price is fair. I'll satisfy any requests you have!"