Data Loan: I Will Pay Off People's Debts in the Future

In the future, people's "negative emotions" (guilt, sadness, pain) will be regarded as "emotional debt" that can be stripped away and traded. The protagonist's power is to sneak into the "emotional data layer" of others, and like a ghost, he personally bears and repays these "debts" for others. He made a living from this until he received an order: to repay his "huge debt" to a slum girl for the city's richest man. During the infiltration process, the protagonist discovers that this debt is not an ordinary guilt, but a memory that has been carefully tampered with and sealed, related to a crime that has been erased by technology.