She studied him long and hard, it was a reasonable answer, and one she truthfully was hoping for... but something was off. His words felted stilted, but natural, it was almost paradoxical. Rena had learned how to read people, it was a common skill in court after all, yet she had never really analyzed Noboyuki. He was only effectively a commoner so she didn't have reason to distrust him at face value. Now however she was starting to think differently... she wasn't sure, if anything he hid it very well, quite honestly on an impressive level. Still he just seemed too off to be truly natural, little too shifty in his gaze, taking a little too long to reach a conclusion. It was nothing big, no obvious giveaways, only smaller signals that at best... could prove something. For both their sakes Rena hopped this was only a false hunch. 

She simply nodded and looked away, and sighed, "Then that's fine, long as we remain honest with each other I don't see there being any problems." She purposefully put an emphasis on the word honest, maybe he'll pick that up, but she wanted to drop signs that she was beginning to become suspicious. She stood up from her spot around the fire, clearly a bit tired. Her mood had normalized more or less, which was fantastic for here, could be that she only needed a release of emotion, although how long that would be the case remained to be seen. 

"I'm... sorry for that, I think you should've figured how I have more than a few things on my mind, I just needed some answers, so thank you for telling me the truth, it helps." She could attack him right there, but she was sure that doing so would quite literally cause him to bolt, and well it could've also been uncalled for if he were really being honest. Rena said a quick good night before settling in for sleep, who could imagine what the future may bring?