To be fair. They REALLY don’t have time for that kind of stuff.
If this were their house or somewhere else, maybe. But they are currently on a very crucial mission.
Remember the chapters when they enter a hidden room.
There was an interesting paralel between previous village chiefs and Odette
https://mangadex.org/chapter/8667e87b-f32d-4c0d-8d31-42e242f0ce86/35
https://mangadex.org/chapter/adfdc282-a564-4081-9c2f-1f9dac73beb6/2
Odette knows the password...
Let me get this straight
1. MC dies and gets reincarnated
2. Aims to become the “true” final boss of the stort
3. He know the final boss gets killed by the hero
…why is he aiming to get himself killed?
I like to assume this is explained more later.
But why would you built your city on top of a pit where you know an evil being was sealed?
This is like building a town on top of a volcano and then being surprise when you see lava in the streets.