Craft Dungeons ...

Cultivate Monster Girls ...

... Become A King?

Osman Spar just made a very dangerous bargain ...

To try and cheat death, he agrees to play a new VR-based fantasy roleplaying game. However, Osman won't be playing as a warrior or a wizard, but as a dungeon core.

Now he must build an underground labyrinth of tunnels and chambers formidable enough to withstand any and all attacks.

But, in order to do that, Osman needs to learn dark magic, summon powerful minions, and cultivate gorgeous monster girls to be his loyal level bosses.

WARNING: This story contains dungeon building, harem building, lewd content, foul language, and explicit scenes ... plus: epic brawls, video game violence, mana cultivation, LitRPG stats and level progression, and a little corgi dog who thinks that he is a dragon!