Now I'm a Demon Lord! Happily Ever After with Monster Girls in My Dungeon

Yuki wakes up in another world. Now a demon lord in charge of a dungeon, he'll have to learn to live with a legendary dragon, a pet slime, a vampire girl, and a wolf creature. It's a lot of work, but watch Yuki juggle it all!

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魔王になったので、ダンジョン造って人外娘とほのぼのする（小説）