The Demon Lord's Resurrection

The Demon Lord's Resurrection is the tenth episode of the How NOT to Summon a Demon Lord series. It aired on September 6, 2018.

Synopsis
''The revival of Demon Lord Krebskulm is shown to be semi-successful, as the form she's revived in is incomplete. Taking advantage of the newly revived Demon Lord's child-like naivete they convince her to not follow through killing all Mortal Races. Eventually though Diablo and group encounter Eulerex a loyal servant to the Demon Lord line and is furious that the Demon Lord's revival was a failure.''

Plot
On top of the Starfall Tower, Diablo's group meet with Edelgard to perform the ritual to revive Krebskulm. How Krebskulm will be revived is by her laying on top of a stone table as magic power will be filled into Krebskulm's soul. Not hesitant to any risks that may occur in the ritual process, Rem calmly states that she's ready to start the ritual.

Wasting no time, Diablo starts to pour his magical power into Rem from her belly button, but this attempt fails to reach Krebskulm. Therefore, Edelgard suggests that Diablo do it via Rem's private area, and this time Diablo manages to reach Krebskulm's seal and break it, sequentially releasing the Demon Lord. As the smoke starts to dissipate from the area, Krebskulm ostentatiously appears and introduces herself. Diablo in character also introduces himself and proclaims his will to fight and defeat Krebskulm. Amused by the proclamation, Krebskulm powers up and threatens to dispose of Diablo, only to become perplexed on how to do so in a Demon Lord manner. Alluding that Krebskulm has amnesia and taking to account for her adolescent demeanor, Rem and Shera manage to convince Krebskulm to not kill mortals any more. Astounded by this turn of events, Alicia tries to reason with Krebskulm to denounce her agreement to never kill mortals any longer and for Edelgard to back her up. However, Krebskulm still refuses due to it not being able to fill her stomach and Edelgard is obsequious to Krebskulm's whims. Now hungry, Shera gives Krebskulm the biscuits she had on her and Krebskulm instantly becomes addicted to them. Krebskulm then claims she remembers her destiny, which is to devour all of the world's biscuits.

Afterward, the group head back to the city, while Diablo carries the languid Rem. From above the Fallen Eulerex appears before the group and introduces himself as one whom has served the Demon Lords for generations. He offers to sacrifice Diablo and company as a celebratory means for an auspicious occasion. However, Krebsklum refuses Eulerex in doing that as she wouldn't be able to eat any biscuits because of it. Perplexed and upset that the newly revived Demon Lord refuses to follow through her mission to dispose of all mortals, Eulerex tries to attack what he calls the incomplete Krebsklum. However, Edelgard stops him leading into a scuffle between the two and Diablo intervenes to rescue Edelgard before she's killed. Diablo then faces off against Eulerex casting spells like Flare Burst and Super Mine against Eulerex, but both attacks do not damage the Fallen. Eulerex then casts Quartz Lance, but Diablo reflects the spell back onto Eulerex. Shocked that Diablo has the same ability as the Demon Lord of Mind Enkvaros, Eulerex uses his sonic speed to try and kill Krebskulm once again, only to be hit with Diablo's Lightning Bullet. Unable to beat Diablo and comprehend his proclamation of being the "True Demon Lord", Eulerex transforms into an owl and flees the scene. Once again Alicia questions whether or not allowing his opponent to escape was a wise decision, however, Diablo again brushes it off. In truth, he wanted to avoid creating a dangerous predicament for the group and suggests they move onward back to the city. Edelgard kneeling before Krebskulm states that she is unable to enter into the city and shall stay in the forest. To avoid Krebskulm's identity from being exposed, Shera suggests that her name be changed from Krebskulm to Klem.

Back in their room at the Peace of Mind Inn, Klem and Shera both get in bed with Diablo in an attempt to help him recover his lost MP. Meanwhile in Alicia's room, she reflects on her life on her harsh and horrible upbringing along with her orders from his Majesty of the Kingdom of Lyferia. Alicia then calmly states her resolve to follow the Demon Lord's creed to eliminate the mortal races.

Elsewhere, Saddler is shown to be free from his petrification.

Characters in Order of Appearance

 * Edelgard
 * Alicia Crystella
 * Diablo
 * Rem Galleu
 * Shera L. Greenwood
 * Krebskulm (Debut)
 * Eulerex
 * Enkvaros (Mentioned)
 * Duke Crystella (Flashback)
 * Duchess Crystella (Flashback)
 * Delouche Xandros (Flashback)
 * Saddler

Differences from the Light Novel

 * Edelgard's detailed explanation on Fallen factions are omitted.
 * Krebskulm's ability to boost Fallen with power are omitted. Consequently, Edelgard receiving power from Krebskulm is also omitted.

Trivia

 * Despite Krebskulm's love for biscuits, they lack sugar and butter and are more of a non-perishable foodstuff.