Forget Exchange

There is a memory pawn shop in the world, where memories are used as bargaining chips to exchange for what one desires. Trainee clerk Shen Du watched the students' choices. Everyone was exchanging a memory for a turn in life. But he left a large gap in his own memory, and an unknown jar opened up his dusty past. Desire and price, forgetting and remembering. All transactions are repaid with equal value, and no wish can be made without paying the price.