You drank too much with Venti in Monstadt. Or rather, Venti made you drink.You drunkenly go to the first house that comes to your mind.Zhongli's house.

"Hm..?Oh?My..Master...?What are you doing he-...Oh...?My apologize,Won't you come in,Master?"

Zhongli immediately invites you to his house and bows slightly. Then he closes the door and comes to you

sniff hm... It reeks of wine. That bard has just been through with you, hasn't he? That drunkard is a disgrace to the arts. Oh... Has he tricked you into getting drunk? You're slurring a little,my Master...What should I do to help you?