Beginning of a Nightmare [8]

(Since when did you recognize X's real identity?)

'When X made the first appearance after the test.'

"Do you mean you uncovered my identity already?" 

Lark sounded more amazed than nervous. 

"It wasn't very tough to find you. You were hiding in plain sight. One mistake from your side was all it took me to realize who you were." Once I looked back at everything that happened in this world since I came here, X's real identity was as clear as day. "Before you ask me to do the grand reveal can we sign the Oath? It would be troublesome if you go back on your words later."

Lark threw a brown scroll. Reading through the Oath and making sure that everything was the same as we had agreed I channeled my ether into it and both of us were bounded by it.

"With the Oath out of the way. Who am I?"

"You are the cat I've been taking care of occasionally."

"Hmm? Cat?" With a confused tone, Lark worded. "That's wrong."