Collapse, but the original god starts

Theresa pulled out Wendy's application.

"...It seems that I can't just sit idle either."

Otto pondered for a moment, and finally decided to go himself.

As for Wendy, it could be said that it was the Wind God's idea to ask her to come here.

So...was this incident caused by the person behind the scenes who brought the people of Teyvat here?