Season 1
Episode: 1x01 | Airdate: Jan 2, 2019 (60 min)
College student Iwatani Naofumi is reading a book titled "The Records of the Four Cardinal Weapons" in the library when he is suddenly summoned to another world and told he has to save the world as the Shield Hero, one of the Four Cardinal Heroes. And one morning, he finds all his money and equipment gone.
Episode: 1x02 | Airdate: Jan 16, 2019
Naofumi follows the slave merchant to his store, where he looks for a partner to act as his sword. But all he has the money to buy is a diseased demi-human girl named Raphtalia, whom he then forces into an incredibly harsh battle.
Episode: 1x03 | Airdate: Jan 23, 2019
Naofumi has obtained a whole load of abilities and skills, and his teamwork with Raphtalia is reaching perfection, too. To prepare for the incoming Wave, he upgrades their equipment and heads to the dragon hourglass to find out exactly when it will arrive. But there, he runs into Motoyasu and the other heroes once again.
Episode: 1x04 | Airdate: Jan 30, 2019
The Wave is gone, but Naofumi's relief is short-lived as Motoyasu challenges him to a duel in the middle of the celebratory banquet held in Melromarc Castle. Motoyasu insists that owning a slave is unbecoming for a hero and that Naofumi free Raphtalia at once.
Episode: 1x05 | Airdate: Feb 6, 2019
After Aultcray reluctantly offers Naofumi a paltry reward, he heads to the slave merchant to redo the slave crest as per Raphtalia's wishes. He also buys a monster egg there, which hatches a few days later and gives him a new party member. Meanwhile, Myne shows up in Lute Village, where they're staying.
Episode: 1x06 | Airdate: Feb 13, 2019
The mysterious girl that showed up out of nowhere was actually Filo. She's a filolial queen with an advanced transformation ability, and she can even take human form thanks to it. However, her clothes get ripped every time she transforms, meaning Naofumi has to get her some magic clothes if he doesn't want to go broke. The party leaves on a new adventure to gather the materials required.
Episode: 1x07 | Airdate: Feb 20, 2019
After hearing of a village that's in immediate need of herbicide, Naofumi and his party head there to do business. The village has been overrun by plants that have turned into monsters, and its residents were forced to abandon it. These plants can even take root in humans, and apparently Motoyasu is the one who released them into the wild.
Episode: 1x08 | Airdate: Feb 27, 2019
After hearing of a village in the East that's being ravaged by an epidemic, Naofumi and his party head there to deliver medicine. The epidemic was caused by the corpse of a dragon that had been killed a month before and left there to rot. Naofumi's party accepts a job request to clean the corpse and head to the mountains where it lies.
Episode: 1x09 | Airdate: Mar 6, 2019
In the Eastern village, Naofumi meets a girl named Melty. She instantly becomes friends with Filo and then requests to accompany the party on their journey. It seems she got separated from her guards. They travel together for a while, but when they reach the capital, they find...
Episode: 1x10 | Airdate: Mar 13, 2019
After refusing to hear Melty out, Naofumi switches to planning for the next Wave. When a bunch of young soldiers ask to join his party, he agrees, but on a certain condition. At the same time, he also tries to upgrade Raphtalia's class after she hits the level cap, but all he receives is harassment.
Episode: 1x11 | Airdate: Mar 20, 2019
Naofumi faces another Wave, this time in a remote village. With the help of the soldiers who volunteered to join him, he's able to secure the safety of the villagers, but the Wave shows no signs of letting up. He heads to fight with the other heroes, only to find a giant ghost ship floating in the sky.
Episode: 1x12 | Airdate: Mar 27, 2019
A mysterious woman showed up out of nowhere and destroyed the second Soul Eater in a single blow. She then proclaimed the start of the "true battle of the wave" and blew away the other three heroes when they attacked her. With Naofumi's party proving ineffective as well, he decided to use the Rage Shield one more time.
Episode: 1x13 | Airdate: Apr 3, 2019
Naofumi foils the attempt to take Melty's life and fights off the royal knights, but he's then framed for abducting Melty and killing several knights, so the party is forced to go on the run. With security tightened and checkpoints everywhere, the party receives a further blow that only makes things even worse.
Episode: 1x14 | Airdate: Apr 10, 2019
Due to Myne recklessly starting a forest fire, Naofumi and his party are forced to flee to a village at the base of the mountain. However, it won't be easy to break through the knights' net. Melty suggests going to a noble she knows for help, and it just so happens that Raphtalia's past is linked to his domain.
Episode: 1x15 | Airdate: Apr 17, 2019
Raphtalia corners Idol with vengeance in her eyes, her bloodthirsty blade reaching for his throat. Naofumi's words bring her back to her senses momentarily, but when Idol attacks her once again...
Episode: 1x16 | Airdate: Apr 24, 2019
As Naofumi and his party try to get the weakened kids to safety, Tyrant attacks them. Once Naofumi realizes that he's actually after Filo, he hatches a plan to lure him outside the city, but they can't even put a scratch on its massive body.
Episode: 1x17 | Airdate: May 1, 2019
Fitoria tells Naofumi that she'll kill all Four Cardinal Heroes if they don't get back on the same page. She even takes Melty hostage, but Naofumi continues to refuse. Understanding where he's coming from, Fitoria instead proposes a one-on-one duel with Filo.
Episode: 1x18 | Airdate: May 8, 2019
Naofumi decides to go straight up to the checkpost in order to talk it out with the other heroes. But there, he finds the one guy least likely to listen to him, Motoyasu, who attacks Naofumi without bothering to listen to what he has to say. Why could Motoyasu be so intent on killing Naofumi, more than ever before?
Episode: 1x19 | Airdate: May 15, 2019
The Pope holds in his hands the ultimate weapon, which possesses the properties of all four cardinal weapons. Faced with its attack skill, "Judgment," and its powerful defensive force field, Naofumi and gang are rendered helpless. As the crisis worsens, Motoyasu, who is now in line to be punished as a "fake" hero, makes a surprising decision.
Episode: 1x20 | Airdate: May 22, 2019
Naofumi and gang stay on the attack despite being trapped in the Pope's Great Cathedral, but its sacred subspace nullifies his Curse Shield, leaving them one step short. Naofumi turns to another, newly unlocked Curse Shield, but the dragon's wrath threatens to swallow his mind whole.
Episode: 1x21 | Airdate: May 29, 2019
After Naofumi survives thanks to Mirelia's help, she comes to visit him and tells him the truth behind the summoning of the heroes and the discrimination against the Shield Hero. She also promises to clear his name, and holds a trial for Aultcray and Myne's crimes.
Episode: 1x22 | Airdate: Jun 5, 2019
After being unable to for so long, Naofumi finally gets to upgrade his party's classes. He then takes part in a meeting of the Four Cardinal Heroes, held under the guise of a celebratory banquet. There, he learns of the existence of a bonus stage, with increased XP earnings. Meanwhile, Raphtalia gets into a fight at the party.
Episode: 1x23 | Airdate: Jun 12, 2019
On the ship to Cal Mira, Naofumi once again runs into L'arc, who keeps throwing him off. However, the strange man's friendly nature shines through, and Naofumi quickly takes a liking to him. After having a fun time grinding levels and a lively meal, Naofumi feels happy and fulfilled for the first time in this world.
Episode: 1x24 | Airdate: Jun 19, 2019
Melromarc brings a large fleet to fight the Wave out at sea. While the queen takes charge and leads the operation well, the other three heroes prove useless yet again, leaving Naofumi to do it all alone. Later, he gets help from L'arc and Therese to fend off the monsters, but then...
Episode: 1x25 | Airdate: Jun 26, 2019
It turns out that Glass, like L'arc, is also a hero from other world. Naofumi barely fights off their combo attacks and then corners Glass in a one-on-one battle, but is then faced with an all-important question: does he truly wish to protect this world?
Season 2
Episode: 2x01 | Airdate: Apr 6, 2022
Mysterious monsters appear as Naofumi is preparing for the next Wave. At the same time they show up, the Wave countdown stops. The Queen summons the Four Cardinal Heroes, and tells them that the Spirit Tortoise has revived.
Episode: 2x02 | Airdate: Apr 13, 2022
The leaders of all the nations' militaries gather in the Spirit Tortoise Kingdom. Naofumi is there as well, and promises to offer his help as one of the heroes. But just before they decide on a plan, a mysterious woman appears…
Episode: 2x03 | Airdate: Apr 20, 2022
The Spirit Tortoise begins its march once more, appearing at the border of the kingdom bearing its name. Naofumi volunteers to lure away its familiars while the army tries to bring it to the mountains. The Spirit Tortoise's familiar, Ost, fights alongside the humans…
Episode: 2x04 | Airdate: Apr 27, 2022
The Spirit Tortoise's head was cut off, but Ost, its familiar, is still alive. It could revive at any moment. The allied armies need to get back into fighting shape, and fast. Naofumi makes the risky move of heading onto the Tortoise's back with only a small group, and tries to find its true weak spot.
Episode: 2x05 | Airdate: May 4, 2022
Naofumi is met by L'Arc, Glass, and Therese. They're after the person who broke the Spirit Tortoise's seal and is controlling it. L'Arc proposes teaming up again…
Episode: 2x06 | Airdate: May 11, 2022
Fitoria appears when the Spirit Tortoise revives, and with her help, Naofumi attempts to destroy its heart and cut off its head at the same time. L'Arc arrives as well, but all of them are helpless before Kyo's overwhelming power.
Episode: 2x07 | Airdate: May 18, 2022
Naofumi wakes up in a strange prison to find him and his party at level 1, and Filo missing. They start to raise their levels in order to escape, but things quickly turn against them when a dangerous monster suddenly appears…
Episode: 2x08 | Airdate: May 25, 2022
Naofumi's party heads for the Dragon Hourglass of Mikakage, in order to get to Sikul, the country that summoned Kizuna. Along the way, he sells rare healing items to make a hefty profit. He hears a rumor about a genius mage…
Episode: 2x09 | Airdate: Jun 1, 2022
Naofumi's party is teleported to Sikul, where Kizuna introduces the Vassal Weapon Hero, Ethnobalt. He says he can use a piece of Raphtalia's hair and Naofumi's blood as a catalyst that can create a shikigami to find her. He creates the shikigami, and they find…
Episode: 2x10 | Airdate: Jun 8, 2022
Raphtalia is imprisoned in a Raybul Kingdom prison. She's wary of L'Arc's team, who is also imprisoned there, but asks them for help in escaping. Glass is weakened by the draining power of the prison. Raphtalia has a plan to escape, but…
Episode: 2x11 | Airdate: Jun 15, 2022
Naofumi's party is overjoyed to be reunited with Raphtalia. Kizuna criticizes Glass for invading another world. Glass and L'Arc swear they won't fight Naofumi anymore, and instead find another way to solve their problem. Meanwhile, Kyo's plot proceeds…
Episode: 2x12 | Airdate: Jun 22, 2022
The Wave appears before its scheduled time. Kizuna's group is teleported to it while Naofumi and his party head for Kyo's lab on Ethnobalt's ship. There, they see the true depths of Kyo's wickedness...
Episode: 2x13 | Airdate: Jun 29, 2022
Raphtalia recalls having to buy clothing for her smaller self. Kizuna remembers being alone for so long. Rishia remembers Ost trying to give advice.
Season 3
Episode: 3x01 | Airdate: Oct 6, 2023
Seeking to reunite the scattered inhabitants of Lurolona Village who were sold into slavery, the Shield Hero and his party head to Zeltoble to secretly compete in the underground fights at the coliseum.
Episode: 3x02 | Airdate: Oct 13, 2023
After his bout, Naofumi encounters Nadia, another one of the coliseum's fierce fighters. With some help from an old acquaintance, Naofumi's team battles through the coliseum's ranks, knowing full well that Nadia will be waiting if they emerge victorious.
Episode: 3x03 | Airdate: Oct 20, 2023
humans Fohl and Atla. Fohl obviously has high combat potential, but Atla is blind and extremely ill.
Episode: 3x04 | Airdate: Oct 27, 2023
A mysterious girl appears while Naofumi is serving breaking to the children at Lurolona Village. Even though he'd prefer to focus on rebuilding the village, the queen asks him to seek out Motoyasu, whose whereabouts are unknown after his party disbanded.
Episode: 3x05 | Airdate: Nov 3, 2023
Naofumi's party is attacked by a pair of mysterious and powerful men. S'yne arrives during the battle and finally attempts to explain why she wants to become one of Naofumi's followers. Meanwhile, more villagers are training in Hengen Muso.
Episode: 3x06 | Airdate: Nov 10, 2023
Ren is haunted by the deaths of his party members in a failed attempt to defeat the Spirit Tortoise, and doesn't want to believe that he might be responsible for what happened. Myne seems ready to take his side and support him, but...
Episode: 3x07 | Airdate: Nov 17, 2023
Keel and other demi-human children in the village are starting to learn how to assume therianthrope form like Sadeena. Ren is now staying in the village while suffering the effects of the Curse swords, and doing his best to fit in.
Episode: 3x08 | Airdate: Nov 24, 2023
Naofumi assembles a party to pursue Gaelion, who has consumed the Emperor Dragon's Core. Gaelion's transformation is profoundly sickening Filo, so Naofumi must return Gaelion to normal within the next two days.
Episode: 3x09 | Airdate: Dec 1, 2023
Naofumi's party regroups and plans another assault on the Emperor Dragon. While their plan of attack comes together, Wyndia explains her connection to the dragon. This causes Wyndia to remember something very significant...
Episode: 3x10 | Airdate: Dec 8, 2023
Filo has recovered, but needs to gain experience to replace her lost levels. S'yne returns from the underground arena bearing a tale of a suspiciously familiar new fighter who uses a bow and goes by the alias Perfect Hidden Justice.
Episode: 3x11 | Airdate: Dec 15, 2023
Rishia faces Itsuki in the underground arena. As Itsuki rants and raves, it's clear that he's also come under the mental influence of Myne and unlocked a Curse series. Naofumi evacuates the children as Rishia enters her most dangerous fight yet.
Episode: 3x12 | Airdate: Dec 22, 2023
Naofumi begins training in the Way of the Dragon Vein with Sadeena and Gaelion. Back at the village, the blacksmith visits, bringing new equipment for Raphtalia. When she tries it on, it reveals a shocking secret about her past...