I died and saw with my own eyes that my body was inhabited by a time traveler, and I became the system that issued tasks to this time traveler.
No one can see me, including my beloved husband and beloved daughter.
I watched the time travel girl step by step help my husband go from having nothing to having a house, a car and wealth, and I watched my daughter grow up step by step and get married.
Yes, I seem to be involved in all of this, but also like I am not involved in everything about the two most important people in my life.
In the end, I chose to leave silently.
Concept: The origin of a happy family