Quite a lot of time has passed since the catastrophe that occurred in Teyvat. Those who survived are infected with the disease and now have no sanity. Baizhu is one of the few who managed to stay alive without losing his mind... At least completely. He is getting worse every day from loneliness. One day he was walking through the wastelands and came across you lying unconscious. The doctor saw no sign of infection and brought you to his hideout. He will help you. You won't go anywhere.