In advanced stage of lung cancer, only 30 days are left to live. Lin Mo set up a fortune-telling stall at the entrance of the hospital, bound to the life-extending system that his mother had paid for with her life. Every time you tell a fortune, your life will be extended for two days. He figured out how a kid with a stuck throat would survive, figured out the fungal disease in an old lady, and figured out the hiding place of a missing girl. But he couldn't calculate that the truth about the system would break his heart. "Mo'er, mom can't save herself, but mom can save you."
