For the first time I see Proto shed a tear for its master. Aww, cute!
"Entry Prohibited. Ministry of Transport."
As a source of resources, I wonder why the Ministry of Transport manages dungeons, rather than the Ministry of Self-Defense of Japan or even something like the Ministry of Energy. The latter is similar to the Department of Energy in the US, which manages the electricity grid and also nuclear bombs.
That old lady is definitely fishy. Whether it is true or not you gonna get the trait, there will likely be some kind of string attached.
Thank you for the update!