The Best Episodes Written By Keigo Koyanagi

After saving Lazarus in A.D. 79, Bon and Yumiko learn their target faces a harsher fate — death by gladiator fight or the wrath of Mount Vesuvius.

Tasked with saving only one person during the Battle of Okinawa in 1945, Bon and Ream wrestle with the harsh reality of the Time Patrol's limits.

Bon and Yumiko travel over 35,000 years back to the desolate landscape of Beringia to prevent a lone hunter from freezing to death on his trek east.

When a rogue Time Patrol agent murders someone, Bon and Yumiko are determined to stop the crime before it happens and uncover their colleague's motives.

There has been a worldwide outbreak of kaiju disasters, and now a 50-meter-class space kaiju has appeared. Gento Hiruma leads a special unit to stop the advance of the kaiju, but they get stuck in a desperate situation. Gento rushes to save his men, but that's when the Blazar Brace appears on his left arm. Led by the light, Gento transforms into Ultraman!

Naofumi stops at Siltvelt on his journey to Q'ten Lo. The people there worship him as a king.

Haruki has not come to school for a few days and everyone is starting to get worried. Miou is determined to finish her “painting of love” and talk to Haruki about an unfortunate event that happened in the past. “I’ll wait as long as it takes” she says, as the first snow of the season begins to fall.

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.

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.

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.

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...

The tour is now divided into two camps: those who wish to stay and those who wish to leave. As the former decide their course of action to secure their safety, the latter heads back down the mountain. Will they manage to leave?

Captured by the group, Masaki reluctantly begins telling her story and what her connection is to the Village. But not everyone trusts her words...

The nations of the world are taking part in joint military exercises when a devastating attack is suddenly unleashed on the world from outer space.

After saving the day, Isami is interrogated about this strange new mech suit that can not only talk, but seemingly has sentience and desperately wants to be reunited with Isami.

Freshly promoted, Bon takes on the task of saving someone from a neighborhood serial killer. But problems arise when he becomes the suspect.

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.

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…

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…

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…

Naofumis party is teleported to Sikul, where Kizuna introduces the Vassal Weapon Hero, Ethnobalt. He soys he can use a piece of Raphtalia's hair and Naofumis blood as a catalyst that can create a shikigami to find her. He creates the shikigami, and they find.

The deadline for the “painting of love” is here and Haruki will need to make a choice. Meanwhile, Miou struggles with her feelings towards Haruki, further complicated by discovering the identity of the man who saved her her life when she was young.

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…

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…

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.