Dungeon Return

Ten years ago, the world experienced its first cataclysmic disaster with the appearance of dungeons— portals to a space filled with hostile supernatural beings.

If left alone, these portals would explode and allow the monsters in Earth.

To counteract this. humans gained powers and a system that upgraded their body's attributes.

Rion was an orphan with minimal social connections. Surrounded by death at a young age, he grew up with pessimistic perceptions.

After an impressive dungeon debut, Rion's ranks through the Hunters rapidly rose; also taking part in the world's first multi-layered dungeon.

Humanity failed and so Rion was transported back to when it all started.