Need to buy wood, hire people, and after building a new house, purchase new furniture...
So many expenses necessary for rebuilding a home are not something Aoto can afford right now.
Moreover—and most crucially, Aoto also needs to help his father repay that gambling debt of 520 gold pieces.
In short, Aoto's current savings can't cover his financial shortfall.
But having a bit more in the wallet is always a good thing.
There's no rush to rebuild the house since he can stay at the Shiwei Hall for now and gradually save enough money to build it.
As for his father's gambling debt, there's no urgency because he doesn't need to repay the massive debt all at once; he can do it in installments.
As long as Aoto can pay a certain amount whenever the debt collectors from the Shimizu Clan come knocking, they won't make things too difficult for him.
Aoto, holding this box of money, returned to the Dining Room where he was staying.
