Inside the Konoha Laboratory.
Naruto and the others were waiting around, bored out of their minds.
"It's been almost three hours. Did Sasuke and Boruto make it back to their own time? Are they already on their way back now?"
"Possibly. After all, we don't really understand the specifics of time travel. Thinking about it, we should have collected more comprehensive data before taking action. Maybe time spent traveling through time isn't directly proportional to time in reality..."
Second Tobirama Senju pondered the matter.
"But just sitting here waiting is kind of boring..."
Naruto looked at the spot where Boruto and Sasuke had vanished. According to the original plan, once they confirmed they could return to their own time, they were supposed to come straight back and report their findings.
Once they confirmed that the Treasure Plow let them travel freely through time just as they had on their arrival, there would be a whole mountain of work ahead, using it to travel back and forth and investigate history.
"Could it be that you didn't fully charge that turtle, Uncle Second?"
"Are you questioning me? That Ōtsutsuki device may be remarkable, but fundamentally, it runs on chakra. I've been studying it for some time now, and I fully understand how it works.
I supplied it with a chakra reserve equal to half of what my elder brother possessed in life. Never mind a single return trip—by my calculations, it would be enough for ten round trips."
Tobirama said.
While Naruto and Tobirama were discussing it, Minato suddenly arrived.
"Is everything going smoothly here?"
"It went pretty smoothly at first. Sasuke and Boruto disappeared without a hitch, but things haven't been so smooth since then. They still haven't come back."
Naruto summed it up.
"They haven't come back yet? Could something