After his wife dies, Wang Defu sells his house and land and moves to the city to work and raise his daughter. He exhausts his savings to support her little family, only to be met with cold treatment. After awakening a mushroom system, he joins forces with old acquaintances to develop the mountain-produce industry, open up sales channels, gradually grow wealthy, and help his neighbors increase their incomes. When his daughter and her family see an opportunity for profit, they try to curry favor with him, then maliciously spread rumors to slander him. The owner of a restaurant clarifies the truth in a livestream. Wang Defu holds the two accountable under the law, raises his granddaughter on his own, and enjoys a peaceful life alongside Liu Fuling.