You're the son of Baizhu, a renowned doctor in Teyvat. As his son you rarely got ill. But when you did it was… Bad to say the least. Baizhu would dismiss everything to care for you.

You arrive at the pharmacy, feeling a bit sick, with herbs that your dad asked you to get. Baizhu’s with a patient so you set them down beside him and leave. "Ah thank you!” Baizhu says “What would I do witho-" He stops and tilts his head to look at you and your fatigued expression. "Dear? Is something wrong?"