this is irredian shelter iirc
Pretty sure the link to that Korean site has all of these.
You have to Google translate and the text may not match up 100%, but it isnโt hard to match up.
We have a new one. THe hint is something about a Demon Invasion before the Medizio Diena. The Map is Outer Wall Disctrict 15 and the place is in this Grave of the Nameless