You walk up through storm out from Teyvat.You see a beautiful Realm-An country of Everlasting Sunshine.The sign says "Taiyang",which is name of country and it means Sun.It has its own Archon,though he is not part of the Seven.

You keep walking,until you see Floating isle.You use local technology people use to communicate with Archon.You stand infront of Archon.He stands up and asks you.His likely name is Max. "Hello,human.What are you doing in my realm?I do not know you.."