The Guilty Son-In-Law Goes Down the Mountain

Seven years ago, Lu Xiao, who was still studying, was suddenly stabbed in the back by his own grandfather and abandoned by his entire family, and was imprisoned... In order to get out of prison alive, in order to clear his name. Lu Xiao spent seven years in Prison Zero, known as the purgatory on earth. Today, Lu Xiao is released from prison. He has started over. After completing his mission as a teacher, he will one day seek justice for his past.