After dying from overwork, Lin Yu awakens inside the Quick Transmigration Bureau. His task? Save tragic supporting characters destined for miserable endings. The problem? Every world's male lead seems determined to fall in love with him. Even stranger... They all have the same soul signature.

Death was supposed to be the end. Instead, Mikhail awakens before an emotionless System with a single mission: Collect regret. Sent across countless worlds, he must become someone whose loss can never be forgotten. Only when his target is consumed by irreversible regret can he move on. "Some people only realize what they had after it's gone."

....