Lin Yi traveled to a different world full of magic and became the young master of a down-and-out aristocratic family. He was short on money but had his own "lying development system". This world is divided into three parts: the human kingdom engages in political intrigue, the dwarves hammer down underground, and the undead play their own games in the Northern Wasteland. Magic is a serious knowledge, and practice requires a diploma, and fighting requires a spell exam—but no one stipulates that modern knowledge cannot be used to reduce dimensionality. The system doesn't force him to take any exams, it only gives him daily tasks such as farming, forging, and raising undead monsters, and he can level up by doing them. While recruiting skeletons as gardeners, he let the dwarf workshop mass-produce magical mechas, and at the same time turned the dilapidated territory into a commercial center. The prince was jealous and wanted to deceive him, the general was paranoid and wanted to suppress him, and the stepmother was deceived by Tiaozi, but in the end, he manipulated them all in reverse with coquettish manipulations. The world may seem dangerous, but in fact, as long as you don't actively cause trouble, you can become stronger just lying down. No one mentioned the earth here, and no one knew his origins, but he used hot pot to conquer the dwarf elders, used WiFi plans to fool the magicians, and forced the other world into a retirement model.