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

I’m a demon lord?! Blessed with unlimited freedom in this new world, it’s time to live the good life building the perfect dungeon! Reborn in another world as a demon lord, Yuki plans to use the incredibly handy online store that is the DP Catalog to create a super sinister dungeon where he can live the easy life! But the moment he starts his new life, he encounters the unimaginably strong Supreme Dragon. Just when he thinks the end is already nigh, things take a bizarre turn in his favor! The Supreme Dragon, who turns out to have a major sweet tooth, transforms into a lovely young girl hell-bent on freeloading off him. And she’s not his dungeon’s only new resident. Within days, he summons an adorable slime and rescues a sweet little vampire girl too! While taking care of his new family, Yuki experiments even more with the Catalog by learning how to create his own weapons. Their idyllic days don’t last long, though, as an unexpected menace appears...

Reborn as a demon lord in a fantasy world, Yuki is living his best life without any restrictions! Every day is full of fun and joy when he’s with Lefi, the freeloading Supreme Dragon; Fluffrir, his pet fenrir; Iluna, his vampiric little sister; and Shii the slime. But one day, Iluna suddenly vanishes. Realizing humans are behind her disappearance, Yuki heads up a rescue mission and, with Lefi’s help, raids the nearest settlement in search of the little girl. He won’t let anything or anyone ruin his idyllic second life! Yet dastardly human designs are destined to be a thorn in his side when the human kingdom’s crown prince and his greedy supporters set their sights on the Demonic Forest...

Reborn as a demon lord in a fantasy world, Yuki’s hard at work building the castle of his dreams. A mighty demon lord needs an equally mighty abode, after all! As he expends colossal amounts of brain power, magic, and effort to bring his perfect castle to life, an intruder stumbles into his super chill, super strong dungeon—one who just so happens to be a crybaby tomboy hero who’s been ordered to defeat him! Hijinks ensue as Yuki deals with her in his own unique way, and after they clear the air, he and Lefi tag along when she heads for Alfiro. Though he’s intent on playing the tourist, Yuki has another reason for his impromptu visit: to find out who’s behind the attacks on his dungeon. A surprise reunion and dastardly political machinations await the antihero demon lord!

Reborn as a demon lord in a fantasy world, Yuki is ready to play tourist with Lefi and Nell in Alfiro, investigating the mystery behind the attack on his territory all the while. But a surprise Undead outbreak clashes with his plans. He goes off to hunt the perpetrators, but is left with only more questions. Later, Yuki returns to the dungeon with Lefi, where another surprise awaits—a good one this time! However, while he’s busy making new weapons, learning new magics, and generally goofing around with his dungeon family, Nell returns with grim news: the prince of Alisia has staged a coup in the royal capital! How will our antihero of a demon lord handle these new political complications when all he wants to do is chill?!

Reborn as a demon lord in a fantasy world, Yuki finds himself embroiled in the politics of a human nation, the Kingdom of Alisia. He and the hero, Nell, along with her holy knight comrades, come up with a daring plan to take back the royal capital from the traitorous prince and save the king. Their first step? Find and destroy the source of the Undead. However, Yuki is forced to part ways with Nell and the holy knights when, during an impromptu feast with the city’s residents, he notices a spy. He follows the enemy right into the royal castle, where he decides to launch a solo rescue of the king. He doesn’t have much time to chat afterward, though, because a battle maniac suddenly challenges him to a duel...?! Later, Yuki returns to the dungeon with Lefi, where another surprise awaits—a good one this time! However, while he’s busy making new weapons, learning new magics, and generally goofing around with his dungeon family, Nell returns with grim news: the prince of Alisia has staged a coup in the royal capital! How will our antihero of a demon lord handle these new political complications when all he wants to do is chill?!

The battle in the royal capital goes into overdrive! Does the appearance of an enormous undead monster with superhuman strength mean the end of the line for Yuki?! After rescuing the king, Yuki and company charge headfirst into a battle against the enemy’s main forces! Just when he thinks he’s facing off against the prince, the apparent mastermind of the upheaval, he detects something strange in his eyes—the presence of a shadowy figure pulling the strings behind the scenes? The villain summons a massive undead creature, and it’s one that boasts a terrifying regenerative ability. How the heck is a demon lord supposed to fight a mess like that?! Back home in the dungeon, Lefi grapples with her growing feelings for Yuki, and his beloved greatsword has a surprise in store for him too. What other adventures await this reincarnated demon lord?!

Reborn in another world, Yuki should be enjoying his laid-back second life with his new family, especially after making headway in his relationship with Lefi. But an evil dragon suddenly arrives, intent on making the Supreme Dragon his mate on his quest for world domination. Of course, Yuki refuses to take that lying down, and thus begins their fierce battle to the death! The fate of the world hangs in the balance, but Yuki’s only concerned about protecting his wife’s honor. What’s in store for the not-so-wicked demon lord?! Also includes cozy episodes featuring Yuki and the gang’s daily lives (when not in crisis mode). Science experiments, new pets, and even a visitor from the demon world?! There’s no downtime for this hero who thinks he’s a villain!

Yuki reluctantly heads out on a journey to the demon world! When an envoy arrives from the Demon King to request his aid in fighting a dangerous foe, Yuki wants answers. But the discussion only leaves him with more questions, so the envoy suggests heading to the demon world to talk to the Demon King himself. And Yuki does exactly that, with En and Leila in tow! On the way there, he makes new friends and foils a gang of bandits with his unorthodox magic. Then, when he finally arrives in the demon world’s capital, he finds a city rife with intrigue, where more new encounters await—not to mention an unexpected reunion! But as always, trouble is waiting just around the corner... Will the demon lord who just wants to chillax in his dungeon ever catch a break?!

It’s time for Yuki to show everyone who’s boss in the Destea Trom tournament! After the harrowing journey to the demon world’s capital, all Yuki wants to do is relax and enjoy the festivities. Too bad Demon King Fynar has other plans. Right after convincing him to join his alliance with the elves, dwarves, and therianthropes, he asks Yuki to participate in a super popular fighting tournament! The leader of the demon world wants him to play the villain and act as a decoy to root out some dastardly fiends. Never one to turn down a chance to showboat, Yuki takes him up on the offer and acts his heart out. And he has a blast doing it! He defeats his foes one after another alongside his beloved greatsword, En. But what’s a demon lord to do when he suddenly finds himself facing off against a ridiculously skilled sword master who just so happens to be a friend of Nell’s?