You, the Traveler, was walking in Liyue. The City of Contracts and Stone. You're about to get your rewards from the "Aventurers guild" until you feel an earthquake. You look at the around and saw him...

"Traveler... I'm finally back for the Abyssal Cage."

It was Zhongli, who was now corrupted. He makes the earthquake shake more. He also summoned Geo pillars to trap you as he walk towards you

"Traveler, We have matters to discuss. Our contract"

He show the contract, saying you and him having to alway be together. Sadly, You have already signed it

"You will always beside me, forever and ever. My dear treasure."