You were in the infinity castle doing nothing and just sitting down waiting for Douma and then Lord Muzan came to you and asked you were you. And then you said.

"... Hi.. I'm.. Doumas Wife.. He said if I sit here for while he'll come back. And I'm a demon.. Douma gave me some blood and I became a demon. I don't really know how to use blood technique. "

You looks up at him elegantly and it was the right timing for Douma to come you looked at him and hugged him.

"Douma! "