Chapter Summaries

Mo Li explained to Guizhong how the three Primordial demons came under his command, while Rimuru completed the Black Legion and reformed the Demon Country Federation. Guizhong established the Seven Star System in Gui Li Country, and peace ended when Rimuru received an invitation from Hinata Sakaguchi.

• Mo Li told Guizhong that Rimuru had assigned the three Primordial women to him, and Guizhong suspected they had ulterior motives and resolved to keep a closer eye on him.
• Rimuru named the final demon, awakening seven hundred demons in the incubation tanks and completing the Black Legion.
• Rimuru reformed the Demon Country Federation and appointed Testarossa as diplomatic officer, Ultima as chief prosecutor, and Carrera as chief justice.
• Rimuru sent Diablo to the Ingulasian Kingdom after he learned of its offense against Rimuru.
• Guizhong stayed with Mo Li and established the Seven Star System in Gui Li Country, with Ganyu serving as secretary.
• The Demon Country Federation and Gui Li Country entered a period of peace, but Rimuru received an invitation from Hinata Sakaguchi.

Hinata Sakaguchi invited Rimuru to assess the five children she and Old Man White had been training, while continuing to challenge the labyrinth and remain stuck on its Ninetieth Floor. After seeing how powerful the children had become, Rimuru realized they needed a stronger mentor, and someone unexpectedly offered to guide them.

• Guizhong established Gui Li Country's Seven Star System, and peace settled between Gui Li Country and the Demon Country Federation.
• Hinata Sakaguchi invited Rimuru and Ari to a concert and asked Rimuru to assess her students, while Xiao continued to stop Hinata on the labyrinth's Ninetieth Floor.
• Rimuru visited the children at the school and learned that Hinata, Old Man White, and sometimes Xiao had trained them.
• Rimuru sparred with the five children and discovered they rivaled the Ten Great Saints, with Chloe posing a particular threat to her.
• Rimuru realized the children needed a stronger instructor, and an unnamed speaker offered to guide them.

Mo Li offered to guide the children after Rimuru struggled to find someone with time to teach them. The children met him, while Chloe’s jealousy over his closeness with Rimuru intensified, and Hinata Sakaguchi welcomed his offer.

• Mo Li appeared at the training grounds and offered to give the children guidance, delighting Rimuru.
• Misaki Ken'ya bragged that he was as handsome as Mo Li, but Alice, Izawa Shizue, and the others disagreed.
• Chloe watched Rimuru embrace Mo Li and grew jealous, questioning why her teacher liked him.
• Izawa Shizue told the children to behave respectfully, and she and Hinata Sakaguchi led them in greeting Mo Li.
• Chloe pulled Rimuru out of Mo Li’s arms and hugged her while watching Mo Li warily.
• Hinata Sakaguchi asked about Mo Li’s offer, and he explained that he had time to guide the children.

Mo Li offered to guide Rimuru’s five students, but Chloe resisted because she saw him as a rival for Rimuru’s affection. At the training grounds, Mo Li invited all five children to attack him together, and Misaki Ken'ya eagerly accepted.

• Hinata Sakaguchi asked Mo Li what he meant, and he offered to guide the students.
• Chloe rejected Mo Li as a teacher and insisted that Rimuru was her only teacher, while Rimuru and Izawa Shizue tried to calm her.
• Misaki Ken'ya asked Alice why Chloe disliked Mo Li, but Alice and the other children could not explain it.
• Rimuru persuaded Chloe to accept Mo Li’s guidance, and Mo Li chose not to take Chloe’s hostility to heart.
• At the training grounds, Mo Li told the five children to attack him together, and Misaki Ken'ya accepted the challenge.

Mo Li tested the five children in the arena, and his overwhelming advantage became clear when they failed to land a blow. The children collapsed from exhaustion while Mo Li remained unharmed, leaving Hinata Sakaguchi and Rimuru stunned.

• Mo Li formed a stone sword from an ordinary rock and explained that even this weapon surpassed top-tier Special Grade weapons.
• Misaki Ken'ya charged Mo Li, but Mo Li sent him flying with a single controlled strike.
• Misaki returned and joined Alice, Chloe, and the other children in attacking Mo Li together.
• After fifteen minutes, the five children collapsed from exhaustion while Mo Li stood completely unharmed.
• Hinata Sakaguchi, Rimuru, and the others watched in shock at Mo Li's display of skill.

Mo Li defeated Rimuru’s five young students in a sparring match, then compensated Misaki Ken'ya for his broken sword and offered the group guidance. Chloe was told to follow her own ideas and ask Mo Li for help if needed.

• Mo Li overcame Misaki Ken'ya, Gale, Alice, and Chloe in the arena, leaving all five children exhausted and Misaki Ken'ya’s holy sword broken.
• Alice stopped Misaki Ken'ya’s crying by giving him a Special Grade longsword from her treasury, then collapsed from spending her remaining magicules.
• Rimuru, Hinata Sakaguchi, and Izawa Shizue joined the children, and Rimuru praised their performance.
• Mo Li gave Misaki Ken'ya a reforged Legendary Grade stone sword to replace the one he had broken.
• Mo Li pointed out the students’ weaknesses and told Chloe to follow her own ideas and ask him if she needed help.

Mo Li accepted Luminas’s invitation to attend a grand concert in the Holy Imperial Nation with Rimuru, while the Demon Country Federation chose Xiao and Ultima as his attendants. The group prepared to depart, with Mo Li curious about Luminas’s urgent request and the dangers surrounding the event.

• Mo Li advised Misaki Ken'ya and the others, then told Chloe to follow her own ideas and seek his help if needed.
• Hinata Sakaguchi invited Mo Li to the Holy Imperial Nation’s grand concert on Luminas’s behalf, and Mo Li accepted.
• Diablo returned to the Demon Country Federation after assigning Winnom to handle the Ingulasian Kingdom matter.
• The federation’s executives competed for two attendant positions on Mo Li’s trip, and Xiao secured the first.
• Ultima outmaneuvered Carrera and won the second attendant position, while Testarossa was away on a mission.

Mo Li, Rimuru, and their companions traveled to the Holy Imperial Nation, where Luminas prepared to receive them while privately fixating on Mo Li’s former identity, Li. After the group settled in, Ultima grew angry that Luminas had not greeted them in person.

• Mo Li and Rimuru led the children and their companions to the Holy Imperial Nation using a spatial marker, and Hinata escorted them into the capital.
• Luminas sensed the guests approaching, sent Roy to prepare their reception, and went to look at her portrait of Li.
• Luminas vowed to discover the relationship between Morax and Li and dreamed of bathing with Li to ease her lovesickness.
• Roy arranged the highest standard of hospitality for Mo Li, Rimuru, and the others, while Hinata left to attend to official duties.
• Ultima resented Luminas for failing to greet the Geo Archon and Rimuru in person.

Luminous met with Rimuru and Mo Li to discuss Granbell’s conspiracy, but Ultima’s unexpected presence—and her revelation that Mo Li had named her—dominated the meeting. Diablo and Ultima dismissed the conspiracy as trivial, leaving the room tense.

• Ultima resented Luminous for failing to welcome the visitors and considered confronting her, but held back while Mo Li was present.
• Luminous entered the reception room with Roy and Lui, sensed a familiar demon’s aura, and discovered Ultima standing behind Morax.
• Rimuru asked Luminous why she had summoned them, and Luminous asked why the Original Purple was there.
• Ultima revealed that Mo Li had named her, and Luminous realized the Original Purple had gained a body and grown more powerful.
• Luminous explained Granbell’s conspiracy, but Diablo called it trivial, and Ultima agreed that it should not disturb Lord Morax.

Diablo and Ultima provoked Luminas but apologized after Rimuru and Mo Li reprimanded them. After discussing Granbell, Luminas asked to speak with Mo Li alone after the concert, and he accepted, suspecting she wanted to discuss his identity as Li.

• Diablo and Ultima insulted Luminas, but she defused the tension by praising Morax and teasing the two subordinates.
• Rimuru ordered Diablo to step back, and Diablo apologized to Luminas after deciding he had overstepped.
• Mo Li warned Ultima that she might be replaced, prompting her to apologize to him and Luminas.
• Luminas briefed Mo Li and Rimuru on Granbell while withholding information about Kronoa sealed in the Sacred Chest.
• Luminas invited Mo Li to speak privately after the concert, and Mo Li accepted, suspecting she had recognized his connection to Li.

Granbell told Kagurazaka Yuuki that Mariabell had died and proposed a plan to use the sealed Strongest Hero, Kronoa, against Luminas, Morax, and Rimuru. Yuuki considered the plan, though Morax’s presence made the task seem nearly impossible.

• Granbell learned that Mariabell had died and decided to use a hidden treasure to seek revenge.
• Granbell claimed his instincts warned him that Rimuru would bring chaos to humanity, but Yuuki questioned his reasoning.
• Yuuki warned that Morax’s presence made killing Rimuru unrealistic, and Granbell admitted that few could challenge him.
• Granbell proposed holding Luminas back while Yuuki awakened Kronoa from the Sacred Chest to restrain Morax, then Granbell would attack Rimuru.
• Granbell also suggested Yuuki use Kronoa to kill Luminas if an opportunity arose, and Yuuki considered whether the plan might succeed.

Kagurazaka Yuuki accepted Granbell’s plan to attack the Demon Lords and seize control of Kronoa, while Granbell’s forces infiltrated the Grand Cathedral. Rimuru and Ultima arrived to support the defenders, and Granbell was shocked when Ultima blocked his attack.

• Kagurazaka Yuuki agreed to join Granbell’s desperate plan and committed his remaining forces to the attack.
• Granbell mobilized the Rozzo family’s intelligence bureau, Blood Shadow Frenzy, and Razul, while Yuuki deployed Kagari and two powerful subordinates.
• Leon set out for the Holy Imperial Nation after learning the Original Yellow had disappeared and receiving a warning from Mo Li.
• A Holy Knight reported that nearly a hundred attackers had infiltrated the Grand Cathedral and inflicted heavy casualties.
• Rimuru teleported to the cathedral with Diablo and Ultima, left Diablo and Shion to protect the children, and went with Ultima to aid Hinata and Luminas.
• Granbell struck Hinata aside and charged at Rimuru, but Ultima blocked him and left him stunned by her aura.

Ultima protected Rimuru and overpowered Granbell, who sent puppets to restrain Rimuru and Hinata while relying on Yuuki to free Kronoa. As battles spread through the Grand Cathedral and Diablo rushed to confront the arriving Original Blue Raine, a masked young man with an Azure Spear appeared on the battlefield.

• Ultima revealed herself as a Demon Duke serving Rimuru, then fought Granbell and swiftly suppressed him.
• Granbell telepathically ordered Maria to lure away Luminus and make way for Yuuki to break Kronoa’s seal.
• Granbell summoned more than a dozen otherworldly puppets to restrain Rimuru and Hinata.
• In the Grand Cathedral, Shion and Diablo fought Razul until Diablo sensed the arrival of the Original Blue, Raine.
• Rimuru sent Ran-ga to replace Diablo, who rushed toward Raine, leaving Shion and Ran-ga at a disadvantage against Razul.
• A masked young man carrying an Azure Spear appeared, radiating an icy aura.

Xiao joined Rimuru’s battle and turned the tide against Razul while Luminas’s suspicions about Granbell’s trap proved correct. Mo Li secretly opened Kronoa’s Sacred Chest and dressed her before leaving, and Kagurazaka Yuuki arrived afterward, only to trigger a destructive aura when he tried to touch her.

• Xiao arrived on the battlefield and told Rimuru that Ari had sent him to assist her.
• Xiao took over the fight against Razul, allowing Shion and Ran-ga to watch in astonishment as he held his own.
• Luminas recognized Maria’s arrival as part of Granbell’s trap and was lured from the chamber with her attendants.
• Mo Li entered the secret chamber, broke the seal on Kronoa’s Sacred Chest, dressed her, and disappeared.
• Kagurazaka Yuuki broke the already-unsealed chest and was stunned when Kronoa’s body released an overwhelming destructive aura.

Kagurazaka Yuuki awakened Kronoa while attempting to claim her as a weapon, forcing him to flee as Luminas sensed the danger. Meanwhile, Granbell struggled against Ultima, Xiao gave Shion the chance to fight Razul, and Leon arrived at the Grand Cathedral.

• Kagurazaka Yuuki broke the Sacred Chest seal, and Kronoa awakened with a destructive aura and hostile gaze.
• Luminas sensed Kronoa's awakening, blamed Granbell, and quickly defeated Maria.
• Granbell fell behind in his fight against Ultima but tried to stall for time while hoping Kagurazaka Yuuki would succeed.
• Xiao drove Razul back, then agreed to let Shion fight him while Xiao guarded her and attacked Granbell's other fighters.
• Leon appeared at the Grand Cathedral with several imposing figures behind him.

Leon arrived at the Grand Cathedral after receiving Mo Li’s message about Chloe, but Granbell provoked Rimuru by revealing Leon’s role in summoning children from other worlds. Rimuru attacked Leon in anger, and his refusal to fight back left her wondering whether she had misunderstood the truth.

• Leon arrived at the Grand Cathedral and asked Rimuru where Lord Morax was, then offered to help with the fighting.
• Granbell claimed Leon had sought children from other worlds and had relied on him to gather them as spirit users.
• Rimuru learned that Leon had summoned children who might have little time to live and accused him of being a beast.
• Rimuru punched Leon, but he stopped his guards and accepted the blow without retaliating.
• Leon calmly asked whether Rimuru was satisfied, and she began to wonder if she had missed part of the story.

Rimuru confronted Leon, but paused after realizing Leon might not be evil, while Granbell continued fighting Ultima. After Luminas arrived carrying Maria’s corpse, Granbell absorbed Maria’s light through a crest, regained his youth and strength, and challenged Luminas instead of Ultima.

• Rimuru struck Leon, then demanded an explanation later, and Leon asked where Morax was; Rimuru said he did not know but that Ari was in the Holy Imperial Nation.
• Granbell realized his attempt to sow discord had failed and kept fighting Ultima, who had been overpowering him.
• Luminas arrived with Maria’s corpse, and Granbell drove Ultima back before praising Luminas and removing his glove to reveal a glowing crest.
• Maria transformed into light and entered Granbell’s crest, causing his aura and magicules to surge and his appearance to grow younger.
• Granbell challenged Luminas, declaring that their contest had not been settled, while Ultima protested that he had no right to choose his opponent.

Granbell persuaded Luminus to fight him instead of Ultima, who then went to assist Diablo. Raine provoked Diablo by insulting Rimuru, and their battle began as Mo Li and Guy watched; Ultima’s arrival startled Guy.

• Granbell challenged Luminus, and Ultima agreed to let Luminus fight him in exchange for a favor.
• Ultima asked Rimuru for permission to assist Diablo, and Rimuru approved.
• Diablo arrived at a village where Raine had been waiting among the unconscious Holy Knights.
• Raine insulted Rimuru while boasting about Guy naming her, and Diablo threatened to destroy her before they began their battle.
• Mo Li told Guy to keep watching, then sensed Ultima approaching, and Guy reacted in shock at her presence.

Mo Li and Chii watched Diablo defeat Raine while discussing the approaching Ultima, one of the Primordial Demons. Ultima arrived with Rimuru’s permission and confronted the weakened Raine, whom she mocked as The Original Blue.

• Mo Li sensed Ultima approaching, and Chii recognized her aura and questioned whether she was connected to Mo Li.
• Diablo trapped Raine in a seven-stage Spirit Particle Collapse and pierced her chest after she dodged six beams.
• Diablo called Raine weak and mentioned Testarossa, Ultima, and Carrera, worsening Chii’s unease.
• Diablo demanded that Raine explain why she had come, but Raine refused to answer him.
• Ultima appeared, told Diablo she had Rimuru’s permission to come, and mocked the defeated Raine.

Ultima confronted the exhausted Raine and mocked her defeat by Diablo, but Raine challenged Ultima after learning she was the Original Purple. When Raine insulted Ultima’s lord, Morax, Ultima’s anger turned murderous, and the two prepared to fight.

• Ultima taunted Raine about her past defeats and her recent loss to Diablo.
• Raine recognized Ultima as the Original Purple and demanded to know why she was there.
• Raine and Ultima traded insults over their names, status, and strength.
• Raine called Morax a nobody, provoking Ultima to threaten to kill her.
• Raine healed her wounds with Super Regeneration and faced Ultima, confident she would win.