When it comes to the fantasy MMORPG Cross Reverie, none can match the power of the Demon King Diablo. Possessing the game's rarest artifacts and an unrivaled player level, he overpowers all foolish enough to confront him. But despite his fearsome reputation, Diablo's true identity is Takuma Sakamoto, a shut-in gamer devoid of any social skills. Defeating hopeless challengers day by day, Takuma cares about nothing else but his virtual life—that is, until a summoning spell suddenly transports him to another world where he has Diablo's appearance! In this new world resembling his favorite game, Takuma is greeted by the two girls who summoned him. They perform an Enslavement Ritual in an attempt to subjugate him, but the spell backfires and causes them to become his slaves instead. With the situation now becoming more awkward than ever, Takuma decides to accompany the girls in finding a way to unbind their contract while learning to adapt to his new existence as the menacing Demon King.
The night of the Demon Lord's resurrection arrives at long last. Rem finally reveals to Shera and Alicia that the Demon Lord Krebskulm's soul is sealed within her. Together, Diablo's party heads for Starfall Tower, where Edelgard awaits.Watch Now:Amazon
The Demon Lord Krebskulm has awakened due to Alicia's betrayal. Diablo stands alone against Klem, her mind consumed by hatred. Shera races to Rem's side. An army of Fallen led by Edelgard marches on Faltra, and the curtain rises on their final battle.Watch Now:Amazon
Diablo resolves to return to Zircon Tower at once after learning the city was under attack by the Demon Lord Army. Meanwhile the desert becomes a battlefield as Laminitus and her soldiers wage battle against the Demon Lord Army's Commander, Varakness. Laminitus struggles against the overwhelming might of the Fallen, and just as the final blow is about to be dealt to her, Diablo appears with a flash.Watch Now:Amazon
After awaking to hands filled with breasts, Diablo follows Shera and Rem to register as new members of the Adventurer's Guild. While Shera is identified as a level 30 Summoner by the guild, Diablo's level proves too high for them to measure.Watch Now:Amazon
The magic weapon, Europa, God of Destruction, appears from underground and attacks, damaging Diablo. Since its attacks aren’t magic, he can’t reflect them with his Demon Lord’s Ring, and Europe’s barrier keeps his attacks from reaching it. “There’s something I want you to do.”—Diablo seeks Lumachina’s aid while barely avoiding the weapon’s attacks, and…
Diablo's party returns to Faltra with the newly resurrected Klem. On their way back from visiting Celestine, Rem and Klem suddenly get separated from Diablo and Shera, with Alicia having led them both astray.Watch Now:Amazon
The Kingdom of Greenwood demands that Faltra City hand over Princess Shera. If they refuse, it will lead to war, so Diablo meets with Galford, the Lord of Faltra City, and accepts a quest to prevent war from breaking out.Watch Now:Amazon
After rescuing Horn, Diablo learns of Horn's secret. Meanwhile, Shera, Rem, and Lumachina make progress through the dungeon and reach the twelfth underground floor. When Rem opens the door, they find the man pursuing Lumachina - Gewalt. To make things worse, a Large Black Dragon appears with a terrifying blast of wind!
The following day after Prince Keera's visit, Shera suddenly bids farewell to Diablo while they're preparing potions. Unable to stop her from leaving, Diablo holes up in the inn, consumed with regret. Rem is unsettled to see him so negative, too.Watch Now:Amazon
Lumachina realizes that Battuta is conducting a large scale curse, threatening the lives of others, but he puts her and Rem to sleep. The two later awaken in an underground space where believers are conducting the ritual. After Horn tells them of Lumachina and Rem's capture, Diablo and Shera take action to rescue them!
Diablo and the others leave Faltra and arrive at Zircon Tower. There they meet an adventurer, Horn, who talks to Diablo about a new dungeon that has appeared - a dungeon that Diablo suspects is the one he created. Meanwhile, Lumachina gets into an argument with a man claiming to belong to the Paladin Brigade who kicked aside a woman carrying her baby...
Diablo and the others are locked up in the sanctuary by Vishos and kept apart from Lumachina. Meanwhile, Horn managed to escape, but she's torn between her desire to flee all by herself and her desire to help her friends. That's when Babalon, the Level Up Goddess that resides within the Holy Grail, appears before Horn.
Diablo, Shera, and Rem head out to the plains to test out new magic. While using said Flight Magic, Diablo spots the light of magic energy rising up from deep within the forest, so he makes haste towards its source. However, his spell gives out half way, and he goes plummeting down! When he lands, he finds the Head Priest, Lumachina under attack from the Paladin, Gewalt.
Diablo and the others were heading to the dungeon to obtain the hidden treasure that can cure the Death Knell Disease when Laminitus and her army surrounds them and attacks. Their party manages to reach the entrance to the dungeon, but there are now six marks on Lumachina's body, and it's said the victims of the Death Knell Disease will die once there are nine marks...
Lumachina asks Diablo to accompany her to the royal capital, so he decides to stop by Faltra City on the way. Diablo's group is worried about Klem and Edelgard after such a long time apart, and Sylvie informs them that they're at a bakery. Apparently the Fallen, Edelgard, had started a part-time job. Curious, Diablo and the others go to investigate...
Diablo and his group arrive at the royal capital, Seven Wall, but the guards stop them at the gates. That explosive situation is resolved by the imperial knight, Alicia. She was awaiting their arrival and leads the group to an inn. That night Diablo reveals to Alicia that the church is out to kill Lumachina...