A modern teacher accidentally time-travels, becoming Shen Mo, a down-and-out scholar with a disabled leg. Living in a dilapidated house in extreme poverty, he still insists on teaching a few impoverished apprentices and accidentally rescues a destitute young child. Facing the harassment of local bullies and heavy life pressures, Shen Mo does not give up. He decides to change his destiny with knowledge, educating people on one side while finding his own way out in this era.