Although ordinary people come to the bank to deposit and withdraw money, sometimes they may take out loans or repay them, the business of banks is far more than this.
For example, banks also undertake the business of leasing safes and even warehouses to store various finances. Of course, this business is also charged for.
Now this underground vault is used by Mr. Kimura to store various things, and according to the bank staff member who accompanied them, it should currently be the smallest vault.
There are eight differently sized silver white shockproof boxes in the vault. It is clear that Mr. Kimura has considered how the person receiving the items in this warehouse should take them away.
It has to be said that this also reflects the Japanese habit of not causing trouble for others, and this kind of habit can sometimes feel more comfortable to others.