"Dungeon Regime": a classic but popular MMORPG dungeon-crawler game with infinite characters to choose from. As a result of an unknown error, two players suddenly got transported inside the game…as the hardest difficulty characters the game has to offer.

Silas Salvador is a delinquent son of a noble who has nothing but money to show for.

And Ruelle Peregrine is his fiancee who got forced into a political marriage by her equally as trash of a family.

The two of them now has to live their new lives while doing everything in order to avoid their respective characters' "death routes".

But, with almost no information on how their routes would play out, the dangers of a world ruled over by the dungeons threaten their mandatory "deathless" run!