Chapter Summaries

Shirou Emiya and Rimuru visited Kaijin's shop to order more than a hundred steel weapons, and Rimuru supplied the Magic Steel Kaijin needed to take the commission. Shirou decided to forge a signature bow of his own, while Rimuru recruited Kaijin and his three talented brothers to help build the slime's village.

• Shirou Emiya, Rimuru, and Gobta found Kaijin's shop and watched Kaijin finish forging before Rimuru requested more than a hundred steel weapons.
• Kaijin explained that he could not take the job because he lacked magic ore, so Rimuru produced Magic Steel and began discussing a deal with him.
• Shirou examined the Magic Steel and decided to forge a bow for himself.
• While Shirou was lost in thought, Kaijin left with Rimuru after learning that his workers had been gravely injured in a monster attack.
• Rimuru healed Kaijin's three brothers, Grom, Dold, and Mild, and they accepted his invitation to help build the slime's village.

Shirou Emiya researched Magic Steel and enjoyed a tavern while Rimuru was jailed in Dewargon, then reunited with Rimuru and the recruited blacksmiths. The group left for the forest aboard Shirou’s Vimana.

• Rimuru duplicated twenty Longswords from Magic Steel after Hephaestus forged one, astonishing Hephaestus and the three dwarven brothers.
• Shirou stayed behind to study and forge while Hephaestus, Rimuru, and the others went to the Night Butterfly tavern; Gobta tended the forge fire.
• After learning Rimuru had been arrested, Shirou reassured Gobta that Rimuru was safe and took him to the tavern instead of attempting a rescue.
• Rimuru arrived at the tavern and complained that Shirou and Gobta had enjoyed themselves while he was in jail.
• Rimuru said Hephaestus and the three dwarven brothers had agreed to join them and were packing after being expelled from the country.
• Shirou summoned his Vimana, and the group boarded it to fly back to the forest.

Shirou Emiya and Rimuru returned to the Goblin village with four Dwarf masters and welcomed them as the settlement expanded. As they began building a new city, Shirou trained the Goblins in a swordsmanship style he created, while Rimuru insisted he would learn to wield a sword too.

• Shirou Emiya and Rimuru returned to the Goblin village aboard Vimana, and Rigurd welcomed them along with the four Dwarf masters: Hephaestus, Grom, Dold, and Mild.
• Shirou Emiya and Rimuru celebrated the Dwarves’ arrival with a banquet and discussed their intolerance for betrayal.
• Rimuru named nearly five hundred Goblins who had submitted, prompting him and Shirou Emiya to plan a new city with the Dwarf masters.
• Shirou Emiya studied the Dwarves’ forging techniques and began combining them as he considered weapons for himself and Rimuru.
• Shirou Emiya trained the Goblins and created Goblin Military Swordsmanship, a foundational style that included coordinated attacks.
• Rimuru demanded to practice swordsmanship, and Shirou Emiya wondered whether the person destined to meet Rimuru would arrive soon.

Elaine, Kabaru, and Kid met the masked Shizue, who agreed to travel with them to the Jura Great Forest. Meanwhile, Shirou Emiya trained the Goblins and learned that the party was being chased by monsters, so he set out to meet them.

• Elaine, Kabaru, and Kid complained about being assigned another investigation, then accepted Shizue into their party for the trip to the Jura Great Forest.
• Shirou Emiya and Rimuru continued developing the city, focusing on its sewer system while the Goblins learned trades and received new clothes.
• Shirou Emiya trained the Goblins in combat and fought four hundred of them each evening to sharpen their abilities and his own.
• Gobta reported that the three travelers Shirou Emiya had described were in the forest with a masked woman and were being chased by monsters.
• Shirou Emiya decided to enter the forest and welcome his friends.

Shirou Emiya rescued Elaine and her companions from ant monsters and reunited with them in the Jura Great Forest. He brought the group, including Shizue Izawa, to his territory and arranged a meal before promising to introduce them to Rimuru.

• Elaine and her companions fled ant monsters until Shirou Emiya warned them to get down.
• Shirou Emiya destroyed the ant monsters with a controlled arrow, then reunited with the three excited adventurers.
• Elaine introduced Shizue Izawa, who revealed that she came from another world and had hoped Shirou was from her homeworld.
• Shirou Emiya led everyone to his territory and asked Rigurd to prepare food for the guests.
• Shirou Emiya told the group to eat while he went to bring Rimuru to meet them.

Shirou Emiya showed Elaine and her companions the monster town and introduced Rimuru to Shizue Izawa as a fellow countryman. Shizue recognized Rimuru’s familiar line, realizing he was reincarnated from her world.

• Rigurd showed Elaine and her companions the Goblins’ training, and they learned Shirou Emiya had trained the soldiers and earned the monsters’ loyalty.
• Shirou Emiya told Rimuru he had found someone from Rimuru’s homeland and explained that she was Shizue Izawa.
• Shirou Emiya brought Rimuru to meet Shizue Izawa while Kabaru and the others ate in Rigurd’s room.
• Rimuru introduced himself as the master of the monsters, and Shizue Izawa recognized his line from a game in her former world.

Shizue Izawa took Rimuru outside to speak, while Shirou Emiya revealed that the Demon Lord they had encountered was Rimuru. When Flame Spirit Ifrit appeared, Shirou went to fight him himself, hoping to use the battle to improve his abilities.

• Shizue Izawa carried Rimuru outside after asking to talk with him.
• Shirou Emiya told Elaine, Kabaru, and the others that Rimuru was the Demon Lord they had just spoken with.
• A surge of magic power and heat spread from a distant burning area, and Shirou told Rigurd to evacuate people and valuables.
• Shirou Emiya joined Rimuru and chose to face Flame Spirit Ifrit himself.
• Shirou charged Ifrit with a magic-coated projected spear, struck him through the forest, and warned him not to dismiss the attack.

Shirou Emiya fought Ifrit while Rimuru and the others watched, easily defeating Ifrit’s Flame Lizards and breaking free of his trap. He charged back at Ifrit, leaving the battle still underway.

• Rimuru learned from Elaine, Kabaru, and Kid that Shizue Izawa had been a legendary Spirit User known as the Explosive Flame Dominator, but remained confident Shirou Emiya would win.
• Shirou dodged Ifrit’s flames and killed all three summoned Flame Lizards with his spear.
• Shirou charged Ifrit barehanded and punched through the physical clones he created.
• Ifrit trapped Shirou in a Magic Circle and unleashed the Blazing Hell Formation, but Shirou blocked the flames with Seven Circles Covering the Scorching Sky and broke the barrier with Talisman of Breaking All Laws.
• Shirou emerged unharmed and charged at Ifrit again, while Elaine, Kabaru, Kid, and Rimuru recovered from their fright.

Shirou Emiya defeated Ifrit in close combat and let Rimuru devour the Flame Giant so Rimuru could grow stronger. While Shirou trained Elaine and the others and helped restore the village, a pulse of magic power from Rimuru’s room suggested that Rimuru had finished devouring Ifrit.

• Shirou Emiya pummeled Ifrit with punches, dodged his clumsy counterattacks, and left him unable to move.
• Shirou Emiya told Rimuru to devour Ifrit, and Rimuru eagerly consumed the Flame Giant.
• Shirou Emiya told Elaine and the other two that he would train them in combat, then helped Rigurd and the others restore the village.
• Shirou Emiya trained Elaine and the other two against Gobta, whose combat strength had reached A- level, until a pulse of magic power came from Rimuru’s room.
• Shirou Emiya wondered whether Rimuru had finished devouring Ifrit.

After Shizue Izawa's death, Rimuru gained a human form and Shirou Emiya cheered him up with teasing and a sword match. Three days later, they had organized Tempest's leadership and production roles, and the city was developing rapidly.

• Shirou Emiya entered Rimuru's room, found him in a human form resembling Shizue Izawa, and teased him about losing his manhood and his dream of building a harem.
• Rimuru and Shirou Emiya joked together, easing the heavy mood left by Shizue Izawa's death.
• Shirou Emiya defeated Rimuru in a sword match after Rimuru switched to the Great Sage's proxy mode, while Gobta and Rigurd's groups cheered for their respective fighters.
• Elaine and her companions left to report to the Free Guild branch, while Rimuru gradually mastered his human body over the following three days.
• Shirou Emiya and Rimuru assigned Rigurd and the Goblin Lords government roles, placed the Dwarf brothers in charge of clothing, tools, and construction, and appointed Hephaestus and Lili to oversee production and management.

Shirou Emiya remembered the Great Ogre Tribe and watched them clash with Rigurd, Gobta, and the Goblin forces before Rimuru arrived to stop the fight. The ogres mistook Rimuru for their enemy, and the chapter ended with both sides preparing to fight.

• Rimuru realized he could taste food in his human form and asked Rigurd to prepare a feast, while Shirou Emiya offered to cook.
• Shirou Emiya explored the developing town and helped the Goblins before sensing magical auras clashing in the forest.
• Shirou Emiya found Rigurd, Gobta, and the Rogue Goblins battling six members of the Great Ogre Tribe; Gobta held off Benimaru, Souei, and Old Man.
• Rimuru arrived and called for both sides to stop fighting, while Rigurd and the others withdrew to his side.
• Shuna accused Rimuru of being an evil monster, and Benimaru ordered the ogres to force him to reveal his connection to the attack on their tribe.
• Rimuru concluded that they could not resolve the misunderstanding peacefully and prepared to fight the Great Ogre Tribe.

Rimuru and Shirou Emiya overwhelmed the six Great Ogres, with Shirou restraining the mage and Shion while Rimuru defeated the others. The battle ended with only Future Benimaru still standing against Rimuru.

• Rimuru declared that he would defeat the Great Ogres without killing them, then asked Shirou Emiya to control their mage, Future Shuna.
• Shirou Emiya silently approached Future Shuna, restrained her, and quickly subdued Future Shion when she charged to rescue her.
• Rimuru intercepted the remaining fighters, knocking down Future Kurobei and Future Souei while telling them to focus on him.
• Future Old Man launched a swift attack, but Rimuru blocked it and struck him down with a knee.
• Future Benimaru remained as the only Great Ogre still standing before Rimuru.

After clearing up their misunderstanding with the Great Ogre Tribe, Shirou Emiya and Rimuru invited the six survivors to join them and discussed the Orc invasion. Shirou revealed that a Demon Lord was behind the invasion and proposed uniting the Jura Great Forest, taking control of the Orcs, and making Rimuru a Demon Lord.

• Rimuru defeated the future Benimaru and bound the six members of the Great Ogre Tribe, then learned from the future Shuna that they had mistaken him and Shirou Emiya for their enemies.
• The future Benimaru apologized, and Rimuru released the six; Shirou Emiya invited them back to town to discuss fighting the Orcs.
• Shirou Emiya cooked for the future Shuna while Rimuru met with members of the Great Ogre Tribe, Hephaestus, and Rigurd to discuss their possible alliance.
• Rimuru asked Shirou Emiya about the attack, and Shirou revealed that two hundred thousand Orcs were advancing through the Jura Great Forest under a Demon Lord's influence.
• Shirou Emiya proposed uniting the monsters of the Jura Great Forest, defeating the Demon Lord's subordinate, taking the Orcs into their ranks, and making Rimuru a Demon Lord.

Shirou Emiya persuaded Rimuru to pursue becoming a Demon Lord so he could protect his people, and Rimuru resolved to gain the strength to do so. Rimuru named the six members of the Great Ogre Tribe, passed out, and they evolved into powerful Ogrekin who began training with Shirou.

• Shirou Emiya explained that Rimuru would need strength to defend his territory and subordinates from monsters and Demon Lords.
• Rimuru considered the dangers posed by humans and the Eastern Empire, then decided to work toward becoming a Demon Lord.
• Benimaru and the other five members of the Great Ogre Tribe arrived, and Rimuru named them Benimaru, Shuna, Souei, Shion, Old Man, and Kurobei.
• Rimuru passed out after naming the six, and Shirou Emiya told them the naming could cause them to evolve into Ogrekin.
• A day later, the six completed their evolution, reached at least A-Class strength, and sparred with Shirou Emiya to improve their fighting skills.

After waking from his slumber, Rimuru welcomed Benimaru and the others as they pledged their full allegiance to him. Shirou Emiya finished forging a sword for Rimuru and began work on his own bow; Rimuru named the sword 'Emiya' and the bow 'Rimuru' before fainting.

• Rimuru woke up and met the transformed Shuna, Shion, Benimaru, Souei, Old Man, and Kurobei.
• Benimaru and the others knelt before Rimuru and pledged their allegiance, and he welcomed them into his ranks.
• Shirou Emiya finished forging a sword using Rimuru's body tissue, and the blade developed faint spirituality.
• Rimuru held the sword and sensed that it was closely connected to him, while Shirou Emiya revealed that his bow had developed the same spirituality.
• Rimuru named his sword 'Emiya' and Shirou Emiya's bow 'Rimuru,' then fainted.

After Rimuru named Shirou Emiya’s weapons and spent all his Magicules, the sword Emiya and bow Rimuru absorbed his power and began changing. Three days later, a red-haired girl appeared in Shirou’s arms and introduced herself as Rimuru.

• Shirou Emiya named the silver-white longbow Rimuru’s Bow, and Rimuru collapsed into slime after exhausting his Magicules.
• Gobta suggested Rimuru had spent his Magicules naming the weapons, and Shuna and the others realized each had received half of his power.
• Over three days, the sword Emiya turned deep blue and the bow Rimuru turned crimson as they absorbed magical power and built toward a transformation.
• Rimuru awoke, and Shirou Emiya explained that the weapons could grow alongside their owners and amplify their magic and skills.
• That night, a red-haired girl appeared in Shirou Emiya’s arms and introduced herself as Rimuru, calling him Father.

Shirou Emiya and Rimuru discovered that their two weapons had taken human form as daughters, whom they named Little Rimuru and Little Emiya. After announcing the girls to their subordinates, they learned that both were elf-like, exceptionally powerful beings with inherited abilities and could transform between human and weapon forms.

• Shirou Emiya woke Rimuru and found him asleep with a blue-haired girl, while Shirou carried a red-haired girl who introduced herself as Emiya and called him Father.
• Shirou Emiya and Rimuru realized the girls were their former weapons transformed into children, and they named them Little Rimuru and Little Emiya.
• After their noisy arrival woke the others, Rimuru summoned everyone to the council chamber to announce the girls.
• Rimuru explained that Great Sage identified the girls as elves, each possessing more than A-Class but less than S-Class strength in Magicules.
• Little Emiya described her weapon-changing, severing, and Predator abilities, while Little Rimuru explained her fire control, Great Sage skills, and Unlimited Blade Works.

Shirou Emiya watched Gawain make a fool of himself in Rimuru’s town, then left with Little Rimuru to train against the approaching two-hundred-thousand-strong Orc army. He charged into the Orc ranks under the restraint of his Gravity Bracelet and began fighting.

• Shirou Emiya and Rimuru discussed the approaching Orc army and Gawain, the Lizardman chieftain’s son.
• Gawain arrived, dismissed Rimuru as a slime, challenged him, and was defeated by Gobta.
• Shirou Emiya left Rimuru in charge of the town and took Little Rimuru to find the Orc army.
• Shirou Emiya ordered Little Rimuru to wait, then used a Gravity Bracelet to restrict his strength for training.
• Shirou Emiya charged through the Orcs’ defensive line and plunged into the heart of their army.

Shirou Emiya fought alone against the Orc army for three days while Rimuru accepted Torreni’s commission to subjugate the Orc Lord. Exhausted but still eager to fight, Shirou continued holding his ground as Rimuru prepared to face the Orc Lord herself.

• Shirou Emiya used Twin Swords to cut down waves of Orc soldiers, whose weapons mostly failed to penetrate his defenses.
• Torreni asked Rimuru to subjugate the Orc Lord, explaining that the Treant Elves could not move to fight the Orcs themselves.
• Rimuru accepted Torreni’s commission because her companions were already battling the Orc army.
• After three days of nonstop fighting, Shirou Emiya treated his wounds and kept facing the Orc forces, confident that Rimuru was watching nearby.
• Shirou noted that the Orc Lord was Rimuru’s opponent and that Rimuru needed to eat him to become a Demon Lord Seed.

Shirou Emiya continued fighting the Orc army to raise his endurance while Rimuru led his forces toward the battlefield and ordered Gawain rescued. The chapter left Rimuru’s group preparing to enter the battle as Gawain fought the Orc General, surrounded by Orcs.

• Shirou Emiya checked his growing attributes and kept fighting the Orcs, aiming to bring them all to their limits before withdrawing.
• Rimuru sent Souei to rescue the former Lizardman king and Gawain’s younger sister, then led the remaining forces toward the battlefield.
• Rimuru warned Benimaru and the others not to underestimate the powerful demon and Demon Lord behind the Orc Emperor’s scheme.
• Rimuru’s group spotted Gawain fighting the Orc General while surrounded, and Rimuru ordered his allies to rescue him.