Good. He had just the name.

Watanuki closed his eyes for a moment, before opening them again and lifting his hand up to make some motions over Yuuko's head.

"...You," He began, "With nowhere to go and nowhere to return...
I grant you a place to belong...
My name is Guanyin!
With this name, I make thee my servant..."

He began to make strokes in the air, marking out Yuuko's name has his regalia.

"Joshinki!" Even though he was that god, in his heart, she was still his goddess.