Chapter Summaries

Ultima destroyed the Empire’s airship fleet and killed Major General Faraga, then discovered that Gaviru had been experimenting on himself with Magic Essence Jamming Radiation. Gaviru reported that the radiation had strengthened his Dragon Warrior Transformation, leaving Ultima baffled by his dangerous scientific curiosity.

• Ultima slaughtered the soldiers aboard the flagship as Faraga ordered every airship to direct its Magic Essence Jamming Radiation at her.
• Ultima demonstrated that the radiation could not stop her, froze Faraga’s Flame Giant, and revealed her overwhelming power by casting Flame of Ruin.
• Faraga recognized Ultima as the Primordial Ancestor Purple and died as the Flame of Ruin consumed him and the surrounding Imperial airships.
• After destroying the Imperial Aerial Combat Legion, Ultima found Gaviru moving slowly and asked what he was doing.
• Gaviru explained that he had exposed himself to the radiation as an experiment and discovered it extended his Dragon Warrior Transformation, leaving Ultima unable to understand his recklessness.

Ultima decided to train the Dragonewts to gain Morax’s favor and offered to guide Gaviru. On the battlefield, Rimuru ordered Gobta’s unit to stop holding back, and Gobta and Ran-ga wiped out the Empire’s land vanguard.

• Ultima judged Gaviru’s battlefield experiment reckless, then realized the Dragonewts could benefit from her guidance and improve the Demon Country Federation’s strength.
• Ultima offered to help Gaviru and the others train during future battles, and Gaviru eagerly welcomed her offer.
• Ultima and Gaviru led the Dragon Rider Corps toward the battlefield while Gobta’s unit retreated under the Empire’s heavy fire.
• Rimuru and Benimaru ordered Gobta’s unit to fight at full strength, and Gobta called Ran-ga to perform Wolf-Demon Fusion.
• Gobta and Ran-ga transformed into a humanoid giant wolf, destroyed the Empire’s linked tank unit with Black Lightning, and routed the remaining land forces.

Gobta and the Demon Country Federation devastated the Imperial Army, forcing Gasta to order a retreat. Testarossa confronted him, killed his subordinates by consuming their souls, and faced Gasta’s ultimate move, Funeral Song.

• Gobta destroyed the Empire’s tank forces, while the Demon Country Federation’s troops overwhelmed the Imperial Army and annihilated its air corps.
• Gasta ordered the remaining Imperial soldiers to retreat and regroup.
• Testarossa appeared before Gasta and reminded him that she had warned him not to cross the line.
• Gasta ordered his soldiers to attack Testarossa, but they collapsed dead before they could act.
• Testarossa said she had consumed their souls because she was hungry, and Gasta unleashed his ultimate move, Funeral Song.

Testarossa defeated Gasta’s attempt to bargain and waited for Imperial reinforcements to arrive. When three Royal Guard Knights trapped her in a Legendary Grade formation, she greeted them as old acquaintances.

• Testarossa revealed that Gasta’s sonic ultimate move had no effect on her and declared him her enemy.
• Gasta offered Imperial intelligence and military expertise in exchange for his life, but Testarossa refused and toyed with him.
• Debos, Barut, and Gorton arrived to protect Gasta and assessed Testarossa as a formidable demon.
• The three knights used the Imperial Banishing Formation to bind Testarossa with holy silver chains.
• Testarossa looked at the knights with nostalgia and said it had been a long time since they had met.

Testarossa revealed herself as the Original White, the Primordial Demon whom Debos, Barut, and Gordon had once sealed. As she confronted them, she exposed the gap between the Empire’s heroic account of the Blood-Soaked Lakeside Incident and what the three knights knew had actually happened.

• Testarossa greeted Debos, Barut, and Gordon as old acquaintances and reminded them that they had once defeated her.
• Testarossa released her demonic aura, prompting Debos and the others to recognize her as the Original White.
• Debos recalled the Empire’s story of the Blood-Soaked Lakeside Incident, in which his squad was credited with sealing Testarossa after she destroyed a small nation.
• Debos remembered that Testarossa had simply lost interest and allowed herself to be sealed, and he and the other knights grew wary of her.
• Testarossa mocked the knights’ fear and arrogance, while Gasta began considering whether he should flee.

Testarossa faced the three humans who had once sealed her, while Rimuru and the others watched from the Labyrinth control room. Rimuru asked Diablo whether he had ever been defeated, and Diablo answered with a tactful boast that left Rimuru suspicious.

• Testarossa mocked Debos and the two others as they confronted her and recalled sealing her in the past.
• Rimuru learned that the three humans had once defeated Testarossa and wondered how powerful they were.
• Rimuru asked Diablo whether he had ever lost, prompting Veldora, Azhdaha, and the others to listen closely.
• Diablo claimed he had never been defeated but praised Rimuru, Veldora, and Azhdaha as beings stronger than himself.
• Veldora and Azhdaha accepted Diablo’s praise, while Rimuru suspected that Diablo’s answer had been carefully worded.

Rimuru worried that Debos and his companions could defeat Testarossa, but Diablo and Mo Li assured him she was far stronger than them. As Debos prepared to strike, Testarossa had already freed herself from their chains.

• Diablo called his past opponents rookies and weaklings, leaving Mo Li speechless while the others accepted his claim.
• Rimuru feared that Debos, Gordon, and their companion posed a danger to Testarossa and considered using Divine Tears to help her.
• Diablo told Rimuru that Testarossa had once allowed herself to be sealed and was now powerful enough to handle the three humans.
• Mo Li confirmed that Testarossa could defeat the soldiers, then watched Debos order his companions to go all out and seal her.
• Debos and the others donned golden armor, but they discovered that Testarossa had already undone their chains and taken them into her hands.

Testarossa exposed Debos and his companions as no match for her, then captured Gasta as he tried to flee. She mutilated him and kept him conscious and alive, leaving Debos enraged as he condemned her cruelty.

• Debos and his two companions armed themselves with golden armor and tried to attack Testarossa, but she revealed their chains had never restrained her and cracked one with her hand.
• Gasta recognized Testarossa as the legendary Original White and began sneaking away while Debos and the others faced her.
• Testarossa vanished from the battlefield and seized Gasta by the throat before he could escape.
• Testarossa severed Gasta's legs and arms, sealed his voice, and used magic to keep him conscious and prevent him from bleeding to death.
• Debos shouted at Testarossa and demanded to know what she thought life was.

Testarossa tortured Gasta and revealed that she had been named and incarnated, shocking Debos, Gordon, and Barut. Debos ordered Gordon to report the news to the Emperor while Barut charged at Testarossa to hold her off.

• Testarossa kept Gasta alive and inflicted curses on him, leaving him writhing in agony.
• Testarossa told Debos, Gordon, and Barut to call her by her name, Testarossa, rather than Original White.
• Debos realized Testarossa had been named and incarnated, and decided the Empire had to be warned immediately.
• Debos ordered Gordon to use transfer magic and report the news to the Marshal and the Emperor.
• Barut volunteered to hold Testarossa off, then charged at her in anger.

Testarossa killed Barut with ease and trapped Debos and Gordon when their teleportation magic failed. She revealed that she had become a Demon Duke, leaving the two Imperial knights terrified and helpless.

• Barut charged Testarossa, but she evaded his spear and killed him by crushing his throat.
• Debos realized Testarossa might have advanced to the rank of Demon Duke and decided he had to warn the Emperor.
• Debos ordered Gordon to finish the teleportation circle, but it failed to activate because Testarossa had used Magic Essence Jamming Radiation.
• Debos demanded to know why Testarossa was so powerful, and she revealed that she had become a Demon Duke after receiving her name.

Testarossa revealed that she had become a Demon Duke and taunted Debos and Gordon about the thousands she had killed. Debos awakened the Unique Skill [Heart of Justice] and became a Human Saint, then challenged Testarossa, who looked forward to killing him for Lord Morax.

• Testarossa told Debos and Gordon that she had advanced to Demon Duke after receiving a name and had nearly reached its limits.
• Testarossa recalled killing over ten thousand people and said they had been only accessories to her contract, enraging Debos.
• Debos fought against Testarossa's magic circle and awakened the Unique Skill [Heart of Justice], breaking through to Human Saint.
• Gordon celebrated Debos's breakthrough, while Testarossa let him advance and considered taking his head as an offering to Lord Morax.
• Debos embraced his new strength and arrogantly ordered Testarossa to surrender and offer her neck for execution.

Debos broke through to Saint-level power and challenged Testarossa, but she treated him as insignificant prey. Ultima arrived and briefly contested Testarossa for the chance to kill him, then let Testarossa handle the fight as Debos prepared to attack.

• Debos declared himself a Saint and ordered Testarossa to surrender, while she dismissed his new strength.
• Testarossa compared Debos unfavorably to Ze'Chion and accepted his challenge.
• Ultima arrived, recognized Debos as a newly advanced Saint, and called him promising prey.
• Ultima and Testarossa argued over who would fight Debos before Ultima agreed to stand aside.
• Debos furiously attacked the demons, and Testarossa faced him without showing concern.

Testarossa effortlessly defeated Debos after he challenged her, killing the newly advanced Saint and ending his story. Ultima watched as Debos’s final attack failed, and Testarossa left the battle victorious.

• Ultima stepped aside and left Debos to Testarossa.
• Debos charged at Testarossa, who blocked his full-powered sword strike with her bare hand.
• Debos frantically attacked, but Testarossa dodged or blocked every blow without injury.
• Testarossa vanished, pierced Debos through the chest, and then beheaded him.
• Debos realized he had died as his head flew from his body.

Testarossa killed Debos and used Death's Blessing to wipe out the remaining Imperial soldiers on the battlefield. Afterward, she and Ultima discussed the destruction and revealed that Carrera remained on standby at headquarters.

• Testarossa beheaded Debos, ending the battle between them.
• Gordon gave up resisting after witnessing Debos's defeat, and Testarossa prepared to kill him with Death's Blessing.
• Testarossa unleashed Death's Blessing, killing Gordon, Gasta, and the nearby Imperial soldiers while leaving the battlefield silent.
• Testarossa reproached Ultima for destroying equipment with Flame of Ruin and warned her to be careful with their power.
• Ultima asked where Carrera was, and Testarossa explained that Carrera remained on standby at headquarters.

Ultima and Testarossa discussed Carrera’s recklessness and praised Mo Li’s foresight in keeping her at headquarters while they helped force out threats to Lord Rimuru. Testarossa also described Xiao as an exceptional fighter, the strongest Demon Lord Seed, whose combat ability surpassed the Federation’s other executives.

• Ultima asked where Carrera was, and Testarossa said she remained at headquarters because her careless use of powerful spells could cause trouble.
• Ultima and Testarossa recalled Carrera’s nuclear magic attacks on Leon’s Golden Country and admired Mo Li for anticipating the danger she posed.
• Ultima and Testarossa expressed their devotion to Lord Morax and agreed to follow Mr. Benimaru’s orders to draw out threats to Lord Rimuru.
• Testarossa said Mo Li likely also intended to temper the Federation’s subordinates, who had gained strength faster than they had gained combat experience.
• Testarossa praised Xiao as a rare, formidable Demon Lord Seed who could threaten the Primordial Demons, while noting that the Federation had no one else like him.

Testarossa killed Debos after he broke through to the Saint realm, while Testarossa and Ultima collected the fallen soldiers’ souls for their own growth. Rimuru panicked during the battle and was stunned by Testarossa’s victory, so Mo Li scolded her for letting melodramatic novels distort her judgment.

• Testarossa and Ultima praised Xiao’s strength and gathered human souls from the battlefield, mindful of Mo Li’s restrictions on harming the Federation’s reputation.
• Rimuru watched Debos reach the Saint realm and nearly used World-Suppressing Rock Spear, but Mo Li stopped her.
• Testarossa swiftly killed Debos, leaving Rimuru shocked that the newly advanced Saint had been defeated so easily.
• Mo Li explained that Testarossa’s strength and carefully perfected body made her far superior to Debos, then told Rimuru to read fewer melodramatic novels.

Benimaru watched the battle’s overwhelming results and was stunned by how powerful Gobta, Gaviru, the Black Legion, Testarossa, and Ultima had proved to be. With the Empire’s forces annihilated and his carefully prepared plans rendered useless, Benimaru was left exhausted while Rimuru tried to convince herself she was not responsible.

• Benimaru watched Gobta and Ran-ga tear through the enemy camp and Gaviru destroy airships in his Dragon Warrior Transformation, far exceeding his expectations.
• Benimaru learned that Old Man White and the others had wiped out the Empire’s supply force alongside part of the Black Legion.
• Testarossa and Ultima destroyed the Empire’s Magic-infused Tank and aerial forces, a total of 260,000 troops, with two spells.
• Benimaru lamented that the enemy had been annihilated before he could use his battle plans and that he would have to revise the plans for what came next.
• Rimuru felt guilty at Benimaru’s breakdown, then tried to shift the blame by insisting Testarossa and Ultima were Ari’s subordinates and that she had not known how strong they were.

Shuna explained that Diablo and Testarossa were Primordial Demons, leaving Benimaru shocked by their identities and by Rimuru’s power. After the victory, Rimuru led a meeting to review casualties and discuss collecting human souls to awaken her subordinates.

• Shuna explained the Primordial Demons’ identities to Benimaru, who realized Diablo and Testarossa were among the seven original demon monarchs.
• Benimaru accepted the revelation and regarded Rimuru’s command over such powerful figures with awe.
• Rimuru led a post-battle meeting and reviewed the damage: the Federation had no casualties, while the Empire lost 260,000 troops.
• The Federation collected the dead Imperial soldiers’ souls for Rimuru because many of her subordinates had reached the Bottleneck Period.
• Rimuru learned that [King of Wisdom] could use enough human souls to awaken one of her subordinates, though some individuals could awaken with far fewer souls.

Rimuru planned to secretly awaken Benimaru and others later, but got distracted during the meeting and was flicked on the forehead by Mo Li. The meeting turned to the Empire’s remaining forces, while Carrera asked to fight and was assigned to wait for orders in the control room.

• Rimuru considered secretly awakening Benimaru and the others to surprise Ari, then grinned at Mo Li during the meeting.
• Mo Li flicked Rimuru on the forehead, and Rimuru returned her attention to the meeting after Shion reminded her they needed to discuss the Empire.
• Rimuru and the executives discussed that the Empire still had more than seven hundred thousand soldiers, but Shion and others eagerly wanted to fight them.
• Carrera asked Mo Li for permission to attack the Empire, and Mo Li refused because her Nuke Magic could devastate the surroundings.
• Mo Li told Carrera to stay in the control room and await orders, which immediately cheered her up.

Mo Li rejected Carrera’s request but let her remain nearby, while Rimuru outlined a plan to lure the Empire’s remaining troops into the Great Underground Labyrinth. Carrera seized the chance to steal Mo Li’s used tea set, leaving the plan in place and her prize in hand.

• Mo Li refused Carrera’s proposal, then allowed her to stay in the control room and await his orders.
• Carrera stood close behind Mo Li while Rimuru discussed drawing the Empire’s remaining seven hundred thousand troops into the Great Underground Labyrinth with Benimaru and the others.
• Mo Li reached for more tea, and Carrera volunteered to take his teapot and teacup away.
• Carrera used Steal the Sky and Change the Sun—Tanuki Swaps Prince—to replace Mo Li’s tea set with an identical one and keep the set he had used.