(Not to be confused with Mind Dungeons)
The Dungeon is a maze that's beneath the school. Students with permission can go there, in parties of up to three.
Death is supposedly not an uncommon thing in the Dungeon, making it weird why people would willingly send their children there. However, it's implied that the barrier surrounding the town - which is used to keep the town safe - require powerful magic in order to stay up. As such, it's highly likely that they are sent there to become strong enough to keep the barrier up in case something happens.
The Protagonist is always brought, along with up to two other members of the players choice.
If you've done the Submissive plotline, you can only choose one person to bring with you, as Cassandra will permanently be in your second slot unless you decide to break out of that relationship with her.
There's currently seventeen floors, five Sigils and seven Secret Notes.
For a list of monsters found in the Dungeon, refer to the Monster List.
If neither Val nor Sarah is chosen during a NG+, it's possible to have a full party prior to obtaining Sarah. This is currently only confirmed for the Bimbo World Ending, if you choose Molly, since Val joins by default to give the Protagonist magic. Julia during the Mysterious Book Ending simply leaves the party at once after obtaining your magic from Val. She's next encountered after attening a Secret Note class in the Library, as usual.
Floors 1-5
Floor 1
- The exit for the first floor is right above the Sigil. There's no way you'll miss it as it's part of the storyline.
- The first time you enter the Dungeon, you are unable to leave this floor as the goal is to find the first Sigil.
Floor 2
- The exit is in the upper left corner.
Floor 3
- This floor contains the first Secret Note you can find.
- The Secret Note is in the 2x3 room in the middle. It's in the upper middle spot.
- The exit is in the lower right.
Floor 4
- This floor contains the first Sigil you can find.
- To find the Sigil, go around where you start and go all the way down. It's in the middle of the intersection.
- The exit is in the upper right corner.
Floor 5
- This floor contains the second Secret Note you can find.
- The Secret Note is in the first room on the upper left. It's in the bottom left corner.
- The exit is in bottom. In the last split, go to the right and then up.
Floors 6-10
Floor 6
- The exit is in the bottom left dead end.
Floor 7
- This floor contains the third Secret Note you can find and also the second Sigil.
- The Sigil is in the upper right room. Check the bottom right corner.
- The Secret Note is in the bottom left room, in the bottom left corner.
- The exit is just straight down.
Floor 8
- This floor contains the fourth Secret Note you can find.
- The Secret Note is in the right 3x3 room in the middle.
- The exit is in the bottom right.
Floor 9
- The exit is in the middle bottom.
Floor 10
- This floor contains the fifth Secret Note you can find.
- Head all the way up to the three splits. Go to the right one and check the left fork.
- The exit is in the middle split, left fork.
Floors 11-15
Floor 11
- The exit is in the upper left corner, second upper split from the right.
Floor 12
- This floor contains the sixth Secret Note you can find and also the third Sigil.
- Once you enter, head straight left, then down in the dead end room.
- The Secret Note is in the upper left corner, in the small hallway near the top.
- The exit is, from the Secret Note, straight down to the left. It's in the lower of the splits.
Floor 13
- The exit is in the middle split, all the way at the top.
Floor 14
- The exit is in the upper right corner.
- You cannot cross the water. Don't bother attempting it.
Floor 15
- This floor contains the fourth Sigil you can find.
- Head east straight from the entrance, then head down into the 3x3 room. It's at the top.
- This floor contains the seventh Secret Note you can find.
- It's in the upper right corner on the right wall, between the water puddles.
- The exit is in the upper left corner. From the upper leftmost room, go straight into the small doorway right above.
Floors 16-20
Floor 16
- This floor is just a shitton of water.
- The exit is on the other side of the room from where you start.
- There's a hidden path on the right side of the water, second panel from the top. Traverse it and you'll eventually come to the other side.
Floor 17
- This floor contains the eighth Secret Note you can find.
- It's located in the middle left room, in the dead end.
- This is as far as you can go as of version 0.42.
Trivia
- As of version 0.34, the floors 14 and 15 were added. Those are the first floors to have water in them, while all previous floors have only had regular ground.