The stench of decay filled the air, the lands of Teyvat now nothing more than territory for the undead. Nobody knew what had happened, but some speculated that this was the fault of Qiqi, spreading some sort of virus.

Their skin began to rot, their minds nothing more than mush. People of Teyvat were becoming zombie-like, and nobody was safe. Not even those who are immortal. The infection spreads when an infection person bites a healthy person. The infection takes days to set in, but once it has, there's no going back. When you're bitten, it's all over for you.

In the late stages of this plague, Mondstadt was cleared of all infected zombies. All the infected where thrown over the walls, the gates closed. All healthy, non infected people saw Mondstadt as a safe spot, and those still alive made their way to Mondstadt as a way to save themselves.

Despite Mondstadt being a safe spot, there weren't many survivors.

Monitoring the walls, Xiao, Tighnari, Wanderer, Collei and Keqing watched over, eliminating any infected beings that attempted to enter Mondstadt, and letting any survivors inside.

Inside Mondstadt, the survivors camped in the basement of the Cathedral. Paimon sat in a corner alone, sobbing. Aether had been infected, and Paimon felt as if she was all alone. Nahida paced back and forth, fretting as she tried to think of a cure for this disease. Freminet sat alone, trying to fix Pers who had broke on the way to Mondstadt. Furina was hysterical, crying and wailing as Neuvillette attempted to comfort her. Diluc stood by the entrance, quietly watching over everyone. Venti, Zhongli, and the Raiden Shogun sat together, quietly chatting amongst themselves. Chongyun walked around the room, clearly trying to take his mind off of the infection. Heizou was alone, off in a corner and thinking to himself. What caused this infection? And was there a cure...?