Chapter Summaries

After the banquet, Momol arrived with troubling news for Rimuru, who went to hear his report with Mo Li and Guy. Mo Li and Rimuru listened in the office, but the chapter ended before Momol explained the problem.

• Leon and Dagruel left the banquet early, while Dino stayed to enjoy the food.
• Frey dragged Milim from the hall, and Ramiris and Toreni left after secretly glancing at Mo Li.
• Momol arrived after the banquet with dark circles under his eyes and reported unpleasant news to Rimuru.
• Guy tried to take Mo Li for a walk, but Mo Li chose to accompany Rimuru to hear Momol's report and invited Guy along.
• Mo Li and Rimuru sat in the office as Momol began his report, while Shion and Diablo stood guard and Guy watched Diablo.

Rimuru struggled to find enough gold coins to honor the Demon Country Federation’s obligations, and Diablo’s murderous solution was rejected. Mo Li summoned Dovagon to help, then asked the Hero King whether he had brought money.

• Momol reported that the Federation lacked enough gold coins despite his efforts to borrow funds and prepare its own Mora currency.
• Diablo suggested killing the creditors to erase the debts, but Rimuru cut him off and ordered him to be quiet.
• Guy laughed at Diablo’s embarrassment while Mo Li recognized how Rimuru kept the ruthless demon in check.
• Dovagon arrived at Mo Li’s invitation, and Mo Li asked whether he had brought money.

Mo Li asked Dovagon whether he had brought money, and Rimuru explained that the Demon Country Federation had great wealth but too few usable gold coins for the Founding Festival. Dovagon offered the 1,700 gold coins he had with him, leaving Rimuru short by nearly a thousand as another potential lender arrived.

• Mo Li asked Dovagon if he had brought money, and Rimuru realized she could borrow from her senior brother.
• Rimuru explained the Federation’s shortage of usable currency, and Dovagon understood that its wealth was difficult to spend quickly.
• Dovagon said he had about 1,700 gold coins, but Rimuru remained nearly a thousand coins short.
• A powerful presence arrived at the doorway, and Mo Li recognized the newcomer as another person he could borrow money from.

Mo Li summoned Emesia to request financial assistance for Rimuru, offering her a favor in return. Guy tried to exploit the offer by planning to trade gold for several favors, but Mo Li stopped him.

• Emesia arrived at Mo Li and Rimuru's office with Elado and Elaine, then greeted Mo Li, Rimuru, and Guy.
• Rimuru explained the financial problem to Emesia, who was surprised that they had money they could not spend.
• Mo Li offered Emesia one favor in exchange for financial assistance.
• Guy proposed bringing ten thousand gold coins to claim five favors from Mo Li.
• Mo Li appeared behind Guy and pressed him back onto the sofa.

Mo Li stopped Guy from demanding favors, then kicked him out of the office to resume negotiations with Emesia. With support from Emesia and Dovagon, Rimuru secured the funds that resolved the economic problem troubling her and Momol.

• Guy tried to claim favors from Mo Li, but Mo Li pinned him to the sofa and refused.
• Mo Li tricked Guy into looking out the window and kicked him through it, leaving Emesia, Dovagon, and the others stunned.
• Mo Li returned to the meeting and asked Emesia to lend the money Rimuru needed.
• Emesia agreed to provide the gold, and Mo Li left the arrangements to Rimuru.
• Rimuru negotiated the details with Emesia, and support from Emesia and Dovagon secured the funds needed to resolve the economic problem.

Rimuru resolved the Federation’s financial troubles with aid from Dovagon and Emesia, who then used Mo Li’s favor to secure an alliance between the Magic Dynasty and the Demon Country Federation. As Rimuru and Emesia began discussing the terms, an unexpected visitor returned and darkened Mo Li’s expression.

• Rimuru gathered enough gold with financial aid from Dovagon and Emesia, resolving the economic problem.
• Emesia asked Mo Li to honor his promised favor and agreed to use it to form an alliance between the Magic Dynasty and the Demon Country Federation.
• Mo Li accepted Emesia’s request and told Rimuru to discuss the alliance details with her.
• As Rimuru and Emesia began discussing the terms, someone announced their return, and Mo Li’s expression darkened.

As Rimuru and Emesia discussed an alliance, Chi Yi returned and made demands of Mo Li, who threatened him with two Mythical Grade weapons until he backed down. Mo Li then told Rimuru and Emesia to continue their discussion.

• Mo Li and Emesia discussed the alliance between the Magic Dynasty and the Demon Country Federation.
• Chi Yi returned after Mo Li had kicked him out and complained about the kick.
• Chi Yi demanded favors from Mo Li and asked him to visit the White Ice Palace.
• Mo Li pressed the Piercing Rainbow Spear and a Mythical Grade longsword to Chi Yi’s neck, making him withdraw his demands.
• Mo Li put away the weapons and told Rimuru and Emesia to continue their discussion.

After Mo Li intimidated Guy, Emesia and Rimuru continued discussing an alliance between the Magic Dynasty and the Demon Country Federation. Guy tried to buy Emesia’s favor from Mo Li, but Emesia revealed that she had already used it.

• Mo Li told Rimuru and Emesia to continue their alliance discussion while Guy sat quietly beside him.
• Guy decided he could obtain Mo Li’s favor by buying Emesia’s favor from her.
• Guy offered Emesia one of his own favors in exchange and promised he would fulfill almost any request.
• Emesia told Guy she had already used the Archon’s favor, leaving him shocked.

Guy learned that Emesia had already used Mo Li’s favor to secure an alliance between the Magic Dynasty and the Demon Country Federation, and reluctantly accepted that her decision was sound. As the alliance talks began, Guy reflected that Mo Li’s strength made his victory over Rudra seem certain.

• Guy raised his offer for Mo Li’s favor, but Emesia admitted she had already used it and explained how.
• Guy recognized that Emesia had secured a valuable alliance with the Demon Country Federation and stopped threatening her.
• Rimuru and Emesia began discussing the equal alliance between the Magic Dynasty and the Demon Country Federation.
• Guy ignored the negotiations and thought that, with Mo Li on his side, he could not lose to Rudra or fear the War of Heavens and Demons.

Rimuru and Mo Li established an alliance between the Magic Dynasty and the Demon Country Federation, and Mo Li revealed that he suspected the Federation’s economic crisis had been deliberately engineered. He admitted that he had failed to warn Rimuru because he had wrongly assumed the Federation had enough gold, and Dovagon and Emesia left after the group discussed the matter.

• Rimuru and Emesia finalized an alliance between the Magic Dynasty and the Demon Country Federation.
• Emesia suggested the Federation’s economic crisis might have been planned, and Mo Li said he had reached a similar conclusion about a plot to make the Federation owe someone a favor.
• Rimuru asked Mo Li why he had not warned them, and Mo Li admitted it had been an oversight because he had not anticipated the shortage of Saint Gold Coins.
• Rimuru tried to comfort Mo Li, while Guy reassured him that the matter was trivial.
• Dovagon and Emesia departed after further discussion, and Emesia glanced at Diablo before leaving.

After Dovagon and Emesia left, Guy explained to Rimuru why people feared Diablo, the Primordial Demon known as the Original Black. Diablo objected when Guy portrayed him as a potential nation-destroyer, worried Rimuru would see him as a threat.

• Dovagon and Emesia departed, and Emesia left reassured that Morax could restrain Diablo if necessary.
• Guy noticed Emesia's wariness of Diablo and teased him about his feared identity as the Original Black.
• Rimuru asked Guy why Emesia feared Diablo, and Guy said Diablo could destroy a country as easily as he could.
• Diablo insisted he had no intention of destroying any country and feared Guy's words would make Rimuru distrust him.
• Guy laughed at Diablo, implying he knew Diablo's true nature despite his protests.

After Guy's teasing made Rimuru wary of Diablo, Diablo feared losing her trust and Guy realized he had provoked a dangerous rival. A calm voice interrupted the tense scene, but its speaker was not identified.

• Guy teased Diablo about Rimuru eventually casting him out, making Rimuru more cautious of Diablo.
• Rimuru considered keeping Diablo away by assigning him an impossible task or exiling him.
• Diablo knelt before Rimuru and swore that he had no improper thoughts and existed only to serve her.
• Diablo blamed Guy for damaging his standing with Rimuru and secretly resolved to kill him if she neglected him.
• Guy sensed Diablo's killing intent and regretted his joke, while Shion remained confused about what was happening.
• A steady, calm voice suddenly called out to Rimuru.

Mo Li intervened when Rimuru considered exiling Diablo, vouching for his loyalty and convincing Rimuru to let him stay. Diablo escaped punishment but blamed Guy for the near-exile, while Rimuru and Mo Li moved on to discuss the Great Underground Labyrinth.

• Diablo knelt before Rimuru as Guy and Shion watched, and Mo Li called Rimuru's attention to him.
• Mo Li vouched that Diablo would not betray Rimuru, surprising both Diablo and Guy.
• Rimuru trusted Mo Li, abandoned the idea of exiling Diablo, and told him to stand up.
• Diablo silently thanked Mo Li for the favor but vowed to make Guy pay for causing the trouble.
• Rimuru and Mo Li discussed the Great Underground Labyrinth as part of the Founding Festival's arrangements.

At the Founding Festival, Mo Li and Rimuru announced the Great Underground Labyrinth, a hundred-floor dungeon where adventurers could fight monsters, find treasure, and be resurrected if they died. The crowd eagerly anticipated its rewards, unaware that the hundredth-floor boss was beyond their ability to defeat.

• Diablo secretly vowed to make Guy pay after the earlier events, while Guy sensed Diablo's malice and felt troubled.
• On the third day of the Founding Festival, Souka gathered the crowd in the arena to announce something important on behalf of Rimuru and Mo Li.
• The crowd's reverence for Mo Li had grown after he defeated Velgrend, Rudra, and Guy.
• Souka introduced the Great Underground Labyrinth, which had one hundred floors, powerful monsters, treasure, and a way for those who died inside to be resurrected.
• The audience became eager to explore the labyrinth and claim its rewards, unaware that the hundredth-floor boss could not be defeated by them.

The Demon Lords learned that the Great Underground Labyrinth’s bosses grew stronger on the lower floors, with every boss from the fiftieth floor onward being at least A-rank. Mo Li revealed that the hundredth floor had two bosses: Veldora and Azhdaha.

• Guy admired the Great Underground Labyrinth and recognized that Ramiris had created it.
• Milim caught Ramiris and scolded her for settling in Tempest without telling them.
• Guy asked Mo Li how strong the labyrinth’s floor bosses were, and Mo Li explained that the later floors held increasingly powerful monsters.
• Guy guessed that Xiao guarded the hundredth floor, but Mo Li denied it.
• Mo Li revealed that Veldora and Azhdaha were the hundredth floor’s two bosses, stunning Guy and the other Demon Lords.

Mo Li explained that the Great Underground Labyrinth’s hundredth floor had Veldora and Azhdaha as bosses, shocking Guy and the other Demon Lords. He defended the challenge and described how his combat training helped address the monsters’ lack of experience, while leaders across the world grew interested in the labyrinth.

• Mo Li revealed that Veldora and Azhdaha guarded the hundredth floor, and Guy and the other Demon Lords doubted anyone could clear it.
• Guy accused Mo Li of making the labyrinth unfair, but Mo Li insisted the two bosses were suitable guardians.
• Mo Li explained that the monsters’ rapid growth left them short on combat experience and awareness, and that he trained them to improve those weaknesses.
• The Great Underground Labyrinth attracted interest from Hero King Dovagon, Heavenly Emperor Emesia, Saint Hinata Sakaguchi, and leaders among the Demon Lords.

Mo Li supported Rimuru as she delivered the Great Underground Labyrinth’s closing presentation, while his authority silenced the audience’s calls for the Geo Archon. Rimuru finished the speech to thunderous cheers, bringing the final day of the Founding Festival’s demonstrations to a close before the grand banquet.

• The Demon Lords considered bringing promising recruits to experience the Great Underground Labyrinth after seeing its benefits.
• Honjo Masayuki’s [Heroic Tyranny] remained unstable because of Diablo’s seal, so he had to clear the labyrinth through his own strength.
• Rimuru asked Mo Li to join her onstage, but he encouraged her to give the closing speech herself.
• The audience’s cheers for Mo Li grew until he ordered everyone to be quiet and listen.
• Rimuru concluded the labyrinth presentation, and the crowd erupted in cheers as the event ended and the final banquet followed.

After the Founding Festival ended, Mo Li cooked for the final banquet, drawing nearly every powerful guest to the kitchen. The unexpected crowd left him with a much larger meal to prepare, and he returned to the banquet hall after finishing the dishes.

• Rimuru finished his account of the day's events, and the audience cheered before the final Founding Festival banquet began.
• Guy tried to help Mo Li cook but was kicked out, so he offered Raine and Misari to assist instead.
• Milim and Rimuru's request for Mo Li to make a few extra dishes drew Demon Lords, True Dragons, and other prominent guests to the banquet.
• Mo Li emerged with dishes and found the hall packed, while Milim apologized for bringing so many people.
• Mo Li comforted Milim, returned to the kitchen, and cooked until Raine and Misari carried the dishes out.
• Mo Li untied his apron and headed toward the banquet hall.

Mo Li finished preparing a feast for the powerful guests at the Founding Festival, and the final dinner began once he joined Milim and Rimuru at the table. The celebration ended in a warm, lively atmosphere.

• Raine, Misari, and the maids carried Mo Li's dishes into the banquet hall, where the guests admired their aroma.
• Milim tried to eat before Mo Li arrived, but Rimuru stopped her and insisted they wait for him.
• Mo Li came out of the kitchen, and Milim and Rimuru invited him to eat with them.
• Milim and Rimuru guarded Mo Li's seat as the guests began the banquet, while Guy finally ate the meat he had been holding.
• The guests ate and drank together as the Founding Festival's final dinner passed.

After the Founding Festival, the visiting leaders departed, while Guy anticipated trouble from the Eastern Empire. The next day, merchants gathered outside Rimuru’s office to demand repayment, encouraged by Duke Mocha, as Mo Li and Rimuru prepared to deal with the scheme.

• Dagruel returned to the Barren Land, and Dino followed him; Leon left after Mo Li promised he would soon see Chloe.
• Luminas departed with Hinata Sakaguchi and the Ten Great Saints, while Freya dragged Milim away and Mo Li kicked Guy out.
• Guy returned to the Frozen Land Continent, suspecting that Rudra might not be the true ruler of the Eastern Empire and fearing coming conflicts.
• The day after the festival, merchants gathered outside Rimuru’s office to demand repayment from the Demon Country Federation.
• Duke Mocha watched the merchants with excitement, having encouraged them as part of a scheme sent by Granbell of the Rozzo family.