Laughter
Ryu felt a headache coming on, but at the same time, he tried his best to stop himself from laughing.
In truth, if he had to assign probabilities to whether this was Nuri's reincarnation or if Yaana was her daughter, he'd say it was about 80% likely to be the former and only about 20% to be the latter. In all likelihood, the reason Yaana's mother shared the name Nuri with Yaana's former life was just a misalignment of karma, something that was bound to happen when you were working with such enormous spans of time and relying so much on luck.
Of course, this was just a gut feeling and he couldn't be sure. But, he would most definitely prefer to be certain before he acted on something so sensitive… The awkward part of it all, though, was that Yaana didn't seem to want to allow him that time, and he couldn't find it in himself to blame her.