After killing the monster, I put the stone into my magic pouch. Then, started walking around to grab other loot in this place.
'There should be a chest behind the coffin.'
And just as I thought, a chest was hidden behind the coffin.
Normally that chest would be opened by injecting a person's mana into it, but since my core was sealed, I wasn't able to do it, well, at least normally.
Directing the lightning mana in the air to the chest, I opened it.
Inside, there were a bunch of plants, some potions, and a key.
'This key is a pretty important item in the game.'
Remembering that, I put the key into the pouch.
And then started waiting for the dungeon to be closed while eating my meal containing dry meat with soup.
***
While I was adventuring and fighting with monsters, I observed quite a lot of things.
