On the app called FreeFriends, he met Saki Kawasaki, a woman short of money due to a family change. On the train, he encountered Kotonoha Katsura, a cowardly girl who was bullied at school. He became a model and met Kirino Kousaka, a girl who loved the anime. From that month on, Yuu Kasugano's youth was no longer normal.

Hua Hong traveled through winter and became the Traveler, the twelfth seat of the Fatui's executive officers. After three years of forbearance, he finally made it to the day of the simulation system's activation. He initially believed this was all a replica, a fake, but when Keqing threw a bracelet in his face and, with a suppressed murderous intent, demanded, "Cancer, being hunted by enemies, running away due to debt? What other excuses do you have?" Seeing the lightning flashing around Keqing, Hua Hong raised his hands and said, "Listen... I'll explain it to you!"