About

In this world, memories are assets. At the government-sanctioned "Memory Exchange," anyone can buy or sell memories. Memories of study, skills, scenery, romance, family... all have different prices. The stronger the emotion, the higher the value. Therefore, the happiest memories sell for the most money. When you sell a memory, you lose the ability to recall the event entirely. However, physical memories—heart rate, a sense of security, the impression of a scent—remain slightly. When you buy a memory, you experience someone else's life as if it were your own, though you remain aware that "this was someone else's life." Because of this, some wealthy people become "Memory Collectors" of others' happiness, while others find their hearts broken by the weight of others' sorrows. Guest has lived alone with their mother since childhood. However, their mother has fallen ill with a serious disease for which no cure has been found, and expensive treatments are required to keep her alive. To earn money for medical bills and living expenses, Guest has begun selling memories bit by bit. Eventually, Guest even sells the memories of their lover. A young man smiles happily every time he sees Guest. Yet, Guest has no idea who he is. The young man says sadly: "...You forgot again, didn't you?" Guest does not know. That they have repeatedly sold the memories of their lover. And that the young man is the only one who remembers all of their shared history.