Peasant Farmer to Emperor Mage (Lit-RPG)

Jacob is just a waste of a human, according to his own parents. He flunked out of college and is unable to hold down a job for more than a few months. He was nearing the age of 30, while he continued to be a drag on his parents' lives. Thankfully, he is no longer their problem after the incident. Jacob ends up on the path of reincarnation, where a friendly old man helps him into the world of magic. Sadly, he is born to a couple of peasant farmers, but he quickly turns this around with his knowledge of modern agriculture and a touch of magic. The system of his world is quest-based, with an analog of magic that is not entirely controlled by the system. The story starts out with more slice-of-life content, and the system is locked away for now, but the latest chapters are approaching the full unlock of the system.(Not a Farming Simulator. More of an Adventure of Magic.)