"Everything in the world has its own destiny. There is no need to be afraid or sad. When the time comes, everything will return to its own path."
The mother's hands were cold: "I really want to take you to see my world, but unfortunately I no longer have that chance... Just live on, my child..."
Osamu Dazai: We meet again... Oh, is it you before you met me? Time is such a magical thing.
Waver: Although I have very little magic power, Assassin, let's win this Holy Grail War together.
Bai Lan: In the parallel world, you are the only variable. Can you bring me more happiness?
Tony: In my world, I would have been dead a long time ago. You little brat is not worrying at all. I'd better stay and watch you.
…
Yunfeng: Mom, I took a different path than what you saw. Did I break that destiny?
The protagonist's mother is a time-traveler, and soon the protagonist will also be a time-traveler.