What he says might give Tsuruhime pause if she were the sort of person to truly think before she speaks, but alas, she is not.

"Well, you got the scowl right, but everything else is all wrong! Mitsunari-san didn't wear a helmet at all," she says, a bit of the anger leaving her voice towards the end. "Actually, he was pretty scary on his own..." she trails off. It's a bit strange that he wouldn't know that, she realizes. Tsuruhime was in the shrine all that time, so she hadn't known, but it seemed to be common knowledge to everyone else. Otani-san's illness, too. She should mention that.

"You should give up and apologize to me for lying! You're not convincing at all. In fact, you're a terrible imposter! Everyone knows that Otani-san was sick. You look perfectly healthy to me!" She finishes with a 'hmph'. If he keeps lying after this, he is a very stubborn man.