Sarutobi Hizashi received news that Naruto Uzumaki had spent the night with the Uchiha clan, and he also discovered that two strangers were there as well, which caused him to frown.
It wasn't a big deal for the Jinchuriki of the Nine-Tails to spend the night at the Uchiha's, as Sarutobi Hizashi wasn't that sensitive, but the presence of two strangers—who clearly weren't from the village—spending the night there was concerning, especially since one looked like an adult Sasuke and the other bore some resemblance to Naruto, though he was much smaller in stature.
His first thought was whether Danzo was conducting secret human experiments again.
However, he immediately dismissed that idea.
Danzo had already been stripped of all his duties, his secret laboratory had been dismantled, and the Anbu were on guard; Danzo had been very honest lately and couldn't possibly be conducting any research.
