That Time I Got Reincarnated as a Slime S3

Rimuru continued with Walpurgis after defeating Clayman and became a Demon Lord, both in name and position, and a member of the Octagram. After enjoying a meal from Guy, one of the Ancient Demon Lords, with the rest of the Demon Lords, Rimuru returned to Tempest with his friends.

Yuuki and the Harlequin Alliance, conspiring in the shadows, were lamenting the loss of their resident Demon Lord Clayman. Forced to change his plan, Yuuki decided to give Rimuru a little payback.

With the conclusion of the Walpurgis Council, Rimuru's territory now expanded to the entirety of the Jura Forest. With this, it is predicted that there will be a flood of visitors from races they had no interaction with before coming to town to greet Rimuru.

While preparing for the opening festival, one of the problems that surfaced was the emergence of monsters. Starting with Veldora, there are a lot of powerful monsters and Majin living in Tempest. Because of that, the magicule in the area became dense, making it likely for strong monsters to be born.

In the Holy Empire of Lubelius, a Two Sides Meeting was held between the two organizations with Hinata at the top. As the knights were arguing with each other, Hinata declared god Luminu's message that says "Do not lay a hand on Rimuru" as absolute and hoped to carry things peacefully with Rimuru, going even as far as planning to apologize for her previous attack on him.

A false rumor that says, "Archbishop Reyhiem has been killed under a demon's scheme" has spread, leading the Temple Knights from all over the world to gather in the Kingdom of Falmuth. Their number is about thirty thousand, far exceeding the combined force of Youm's men and reinforcements from Rimuru.

Hinata wishes to talk things out with Rimuru and heads straight to Tempest without hiding. On her way there, she enjoys the ramen Rimuru invented and crosses the well-paved highway. Confident that Rimuru truly wishes for monsters and humans to coexist, Hinata questions the provocative message she received from Rimuru. Meanwhile, Rimuru had Soei and his other men monitor Hinata.

The Crusaders have infiltrated Rimuru's territory and started military action. To protect Tempest, Rimuru and his men have no choice but to fight back. Shion shows off her new Unique skill against Renard and Garde of the Crusaders. Rimuru comforts Hinata, who challenges him with her all! Hinata fought using all the skills and experiences she inherited from her mentor, Shizu.

While Rimuru and Hinata were fighting to the death in Tempest, a man was conspiring behind the scenes in Maris, the capital city of Falmuth. The man's name was Damrada. He noticed the existence of a Primal Demon among the enemy forces and pulled some strings before he disappeared.

To end the battle for good, Hinata proposed to Rimuru that she'd accept defeat if he could withstand her ultimate strike. Rimuru accepted the proposal, took Hinata's Meltslash head-on, and survived. As promised, Hinata accepted her defeat, but then, the sword Hinata received from the Seven Days Clergy moved on its own and targeted Rimuru.

With Luminus purging the Seven Days Clergy, the battle came to an end. Rimuru, Hinata, and Luminus then begin discussing the future of diplomatic relations between Tempest and Lubelius. Their biggest concern was the doctrine of the Western Holy Church, which defines monsters as absolute evil.

With the battle against Hinata and the Crusaders finally coming to an end, Tempest residents are now busy preparing for the Tempest Founder's Festival. Rigurd prepares the invitation for the world leaders, and Vester prepares for a presentation on his research. Shion is also apparently preparing something in secret?

By the time the invitations for the Tempest Founder's Festival that Rimuru sent arrived at the Armed Nation of Dwargon and the Sorcerous Dynasty of Thalion, one of the members of the Octagram, the Fairy Queen Ramiris, did something suspicious.

With the help of Ramiris's skill, Rimuru was able to finish the arena, which normally would have taken several years to finish, in just a month. He then tried to build his made-from-scratch dungeon right under the arena.

Before the opening of the Founder's Festival, an audience with Rimuru was held. Representatives from all tribes in the Great Forest of Jura arrived at Tempest one after another. In addition to familiar faces such as Gabiru's father Abiru and the Treyni sisters, there were also the hot-blooded Mezu and Gozu.

It is the final day of the audience. Rimuru is facing Momiji, the representative of the Tengu tribe, his subject of concern. Rimuru sent Benimaru as his envoy to Kusha Mtns., where the Tengu live, and Tempest was trying to excavate to build a tunnel for the construction of their highway.

Rimuru succeed in recruiting the skilled merchant Mjöllmile and called him in as a chief financial manager. After hearing the story about elves being sold as slaves from Mjöllmile, Rimuru had Soei investigate it.

With the audience with the kings of the nations ended, Rimuru headed to Engrassia to invite his students to come to the Founder's Festival. The students joyfully join Rimuru to Tempest. Shortly after, Hero Masayuki appeared.

It is the eve of the Founder's Festival. Rimuru and his men at Tempest are welcoming the guests with luxurious dishes. Hakuro prepared a giant monster fish and made sushi. The guests were wary of this type of dish new to them but were pulled in after seeing Hinata and Yuuki eat it.

It was day one of the Founder's Festival. Hinata and the kids were enjoying the food stalls. Perhaps because they were all Shizu's students, Hinata was willing to babysit them at Rimuru's request. Meanwhile, Rimuru and his friends were enjoying all the events. At an orchestra played by various races, Shuna and Shion's performance was well-received.

The Founder's Festival's main attraction finally begins! In his quest to defeat Demon Lord Rimuru, the Hero Masayuki managed to get to the main matches without revealing his true strength. The other participants include Boyix and Equix, the two who were fighting in front of Rimuru during the audience.

The night before the final of the Battle Tournament. Rimuru received reports from Mjöllmile that they didn't have enough dwarven gold coins to pay the merchants. Stellars hold too much value to be used for exchanges.

The winner of the Battle Tournament was the Hero Masayuki. Rimuru invited Masayuki to lunch and successfully convinced him to become his friend. As the dungeon is a main event that Rimuru wants to make a success of no matter what, he asks Masayuki to advertise it for him. Having no attachment to his title as a Hero, Masayuki accepted the offer.

Rimuru rushed to Mjöllmile, who was pressed for payment. Ordered by Grambel, one of the merchants, a noble named Meuese, tried to make Rimuru owe him. However, Rimuru was able to pay using the gold coins he got from Gazel and Elmesia and then claimed that he'd create a giant economic bloc.