He died once.
The day the Gu family's eldest branch took his spiritual root, his heart stopped for half a moment, then started beating again. From that day on, he could see things no one else could: a card left beside every dead person.
Each card holds something the deceased treasured most: a cultivation technique, a special constitution, a memory, an identity. But he cannot take it unless he agrees to do something for them.
He dares not owe anyone a favor. Yet every time he grows stronger, he owes another life. Every time his heart stops, he comes one inch closer to true death.
So he makes a decision: he will repay every debt, one card at a time.