Season 1
Sakamoto Takuma was so strong in the MMORPG Cross Reverie that his fellow players came to call him the "demon lord." One day, he gets summoned to another world in his avatar form, and meets two girls who both insist that they're the one who summoned him. They cast a spell used to enslave summoned beasts on him, but that activates his unique ability, Magic Reflect, and the girls end up being the ones put under the spell! And thus begins the otherworldly adventure of a demon lord (pretend) who blazes his own trail through overwhelming power.
The Demon Lord Act
Takuma Sakamoto was a shut-in gamer who achieved renown as the Demon Lord in Cross Reverie, a MMORPG, for his overwhelming gear and skill.
Strongest Newcomer
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.
Fallen Assault
The Warrior Emile, defender and ally of all women, challenges Diablo to a fight.
Point-Blank War Dance
Rem, Celestine, and even Emile struggle in their battle against Gregore’s sudden attack. Meanwhile, Diablo and Edelgard confront each other on the Bridge of Ulug.
Imperial Knight
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.
Slave Market
While Greenwood’s demands remain unmet, Diablo and the girls visit a slave market to see if they can learn the magical secret of the Enslavement Collars.
Change of Heart
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.
Hero’s Charge
Diablo squares off with Prince Keera’s Summon, the Force Hydra, a monster he has never faced before.
Holy Knight Tale
Alicia returns to the Imperial Capital to give her report on the incident between Faltra and the Kingdom of Greenwood. There she encounters the Paladin, Saddler.
The Demon Lord’s Resurrection
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.
The Young Girl Awakens
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.
Battle for Legitimacy
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.