Neji froze for a moment, then nodded.
Hiashi had originally known little about the branch on the moon, but after the incident with Hinata's Tenseigan, he had made a point of consulting the Main Family's records.
At last, he had found relevant accounts in some ancient texts. Once he understood the situation, he had not kept the information secret, either, and had opened all the Main Family's records to Neji on the eve of the Chunin Ninja Exams.
That was how Neji had learned about the Hyuga Clan's "Main House" on the moon.
"Are you leaving right away, then?"
"Yes. Naruto's already gone to apply for permission to leave the village temporarily, with Brother Neji and me accompanying him."
In fact, the trip to the moon was not something Naruto had suddenly brought up. He had already spoken to Hinata about it after the Chunin Ninja Exams.
Her Tenseigan was still extremely unstable. Naruto had originally planned to take Hinata to find this "Otsutsuki Toneri" the Nine-Tails had mentioned after the Chunin Ninja Exams, to help resolve the problem with her eyes.
But Adult Sasuke and Boruto's sudden arrival, followed by Urashiki Otsutsuki's invasion, had delayed those plans.
Then some problems had arisen with Naruto's Metamorphosis Mode. Hinata cared more about Naruto's safety than her own eyes, so naturally, she wanted him to follow the Great Toad Sage's "last wishes" and gather Senjutsu first.
"Applying for a special operation... ah, right. Naruto's a Jonin now."
Hiashi had been murmuring to himself, but quickly realized.
Under the current Konoha ninja system, Konoha ninja could not simply leave the village without a mission or authorization.
Their strength might be considerable, but that was how the ninja system worked. At least in Konoha as it stood, they still had to follow the procedure.