The young man is a librarian, with a stable, well-paid job. He is handsome, has above-average cultivation, and behaves impeccably. He doesn't go clubbing, shop recklessly, compare himself to others, visit nightclubs, or keep an unhealthy schedule, yet he hasn't dated anyone in nearly a century. As the Enforcement Team investigates the serial murders uncovered in recent years, the secret behind the young man's century without a partner is gradually revealed...
After solving several cases in a row, the Enforcement Team gives him a New Year's couplet.
First line: Peach blossoms blooming everywhere.
Second line: Fresh black peaches.
Horizontal scroll: You're really lucky to be alive.
