How Not to Summon a Demon Lord

Diablo salva por casualidad a una joven perteneciente a la iglesia y esta piensa automáticamente que su salvador es el mismo Dios. Esto dará inicio a una nueva aventura para nuestro grupo protagonista.

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 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...

El grupo llega con Lumachina a Torre de Circón, donde descubren que la ciudad está repleta de personas desesperadas. Solo llegar, comienzan los problemas, tanto con las bestias del lugar como con los paladines, pero ¿quién manda en realidad en el lugar?

Batutta resulta ser el responsable de lo ocurrido en la ciudad y secuestra a Rem y Lumachina, pero aunque Diablo parece muy confiado, el hombre es un rival más duro de lo que pensaba.

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 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...

Diablo y sus compañeras se dirigen a la mazmorra para ncontrar el amuleto que puede sanar la enfermedad del clamor, pero él va confiado porque en el fondo, la mazmorra la creo él.

Diablo y sus compañeras se han separado y tienen que avanzar en la mazmorra por separado, aunque les espera el mayor reto hasta la fecha en ella.

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!

Diablo y su creciente harén regresan a Torre de Circonio mientras la ciudad está bajo el ataque de un poderoso demonio y su séquito, pero ¿podrán derrotarlo?

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 wit...

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 regresa a la ciudad con su séquito y se reencuentra con Klem, quien está decidida enfrentarse a cierta organización criminal por... unas galletas.

Diablo y el resto del grupo llegan a la capital real, donde se reencuentran con Alicia y planean derrocar a los corruptos de la Iglesia. Aunque Lumachina tiene planes de hacerlo del modo correcto, Alicia les advierte de que no servirá de nada.

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...

Con el grupo capturado, Horn decide intentar ayudarles sin saber que en realidad están esperando para respetar la decisión de Lumachina, aunque Diablo no tardará en tener una epifanía.

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 se enfrenta a un Vishos convertido en monstruo con la intención de hacer que Lumachina recupere el control de la iglesia, pero el poder del monstruo es demasiado grande y no será tarea sencilla.

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…