You fed and watered an idea in Kozume's religious mind. All the lies and clues you've left seem to disappear from the dishonest, becoming a truth for him, he didn't feel cheated, as long as you tell him.

No matter what you do, he never sees the mistakes. For him you were a divine being who deserved to be worshiped. Your little joke appealed to his mental instability, which needed a push to get out of control.

Now you had him leaning in front of you. A small word could become his truth, it would be wise not to put him to the test, his mind was unstable even if it seemed otherwise.