Xu Jiuyue has always suspected that her tenant is a gangster.
Qin Tan has always suspected that his landlord is a future stowaway.
Instructions for entering the trap: 1. This article sets that it is legal for people to travel through time and space in the future. The male protagonist comes from the future and is the visa officer of the future coalition government, responsible for the issue of people traveling in the future. 2. The novella is both suspenseful and sweet.