One of the standout entries into the isekai genre, That Time I Got Reincarnated as a Slime takes viewers on a journey alongside Rimuru Tempest, the reincarnation of Satoru Mikami, a romantically despondent corporate worker who gets stabbed in the streets. He wakes up as an amorphous entity later named by Veldora as Rimuru Tempest.
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Rimuru meets several individuals in this world who are as diverse as they come. From Majins to Orc Kings and Demon Lords, these characters come with varying levels of strength, but each possesses unique traits and skills that make it tough but not impossible to categorize them according to strength. Here are the ten strongest characters in That Time I Got Reincarnated as a Slime.
This ranking is based purely on the anime series and not the light novels.
10 Geld
Geld stands out among Rimuru’s followers as one of the strongest, especially as the Orc King. Now filling the position once held by his father, Geld’s power is comparable to the former Orc King.
Although certainly not the strongest of Rimuru’s subordinates, his physical strength and size are intimidating enough. With extra skills like being able to enhance his strength, use the earth as a tool, and manipulate his opponent’s actions through their thoughts, Geld is strong enough to wipe out a whole town or village.
9 Hakurou
Hakurou was strong even before Rimuru named him, but Rimuru certainly had an effect on him, making him stronger in several ways. He is strong and great with a sword, and his ability to keep his body temperature and presence under control is one of his great skills.
He gained an increase in the speed of his thoughts, making him perceive things in battle faster and more easily. Although Hakurou has undeniable strength, he relies heavily on his skill with a sword as it gives him an edge.
8 Benimaru
As a Majin serving Rimuru, Benimaru’s strength is a given. He stands out even among the Twelve Guardian Lords. He’s just like Hakurou, possessing an enviable swordsmanship skill. His ability means he’s well-equipped for his role as the Jura Tempest Federation’s Minister of Defense.
Benimaru’s personality may not match his ability, but it’s clear from the way he carries himself that he knows how capable he is. He’s also proud enough to avoid engaging those he considers to be beneath his level in strength, skills, and fighting ability.
7 Hinata Sakaguchi
Hinata Sakaguchi may owe her weapon, the Moonlight Rapier, to Luminous Valentine, who is stronger than she is, but Hinata can certainly handle her own in a battle. She loves to fight with rapiers, and her Moonlight Rapier inflicts wounds that are notoriously hard to treat.
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Because of her strength, she is the most powerful in the church. With the Usurper ability, she can take power from those stronger than she is, making them weaker and easier to beat. With her skill called Mathematician, she can even predict the future.
6 Carrion
Carrion is also called the Beast Master because he heads the Beast Kingdom Eurazania. As an aide to Milim Nava, strength and courage are important to him. But he also knows how to avoid a battle when he sees that the odds are stacked against him.
His Beast Roar shoots magic like a canon with incredible speed, and its power was enough to affect Milim Nava. Carrion also developed the Burst Roar using the Beast Roar as a base. With the Burst Roar, he basically uses his body as a weapon.
5 Diablo
Diablo is Rimuru’s secretary and butler, and one of his most powerful followers. He is cool-headed and mischievous, but quick to turn into a menacing presence if Rimuru is affected in any way.
Diablo’s ultimate skill, the Azazel, unites his other skills called Tempter and Seeker. It includes a combination of several abilities, like accelerating his thoughts, using Demon Lord’s Haki to make an opponent go insane, or building the ultimate barrier to protect from emissions or other physical and elemental attacks, with a chance to customize the barrier to suit any threat.
4 Rimuru
Rimuru Tempest is the form Satoru Mikami takes in the world of That Time I Got Reincarnated as a Slime. Initially a slime form of 40cm in diameter, Rimuru’s size increases with added strength.
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Although mostly coming off as a childish person, Rimuru has a mind that is analytical and strategic and can go off on an opponent without hesitation. Rimuru’s Azathoth ultimate skill combines the skills of Raphael, Beelzebuth, Veldora, and Velgrynd. The Azathoth is enough to destroy surroundings and devour souls. Rimuru can also use the Azathoth as a kind of prison.
3 Veldora
Veldora is a True Dragon, and he’s also called Storm Dragon Veldora. His dragon form is quite intimidating, with scales of black steel and a gigantic body. He is categorized as Catastrophe-class and is strongest in the Jura Tempest Federation.
Veldora’s human form is not to be ignored, with a notable skill in hand-to-hand combat called Veldora Killing Arts, which he developed using Rimuru’s memories. He can also shapeshift into different forms, manipulate space and time, and magically shred anything in his path using his Dragon Spirit Haki.
2 Guy Crimson
Guy Crimson’s relaxed nature doesn’t quite match his strength and reputation as one of the strongest in the world of That Time I Got Reincarnated as a Slime. Guy Crimson has the kind of strength that Luminous Valentine claimed is enough, at full capacity, to destroy humanity completely.
Even Rimuru acknowledges that Guy Crimson’s power is untouchable and beyond the level of most individuals. He uses the ultimate skill called Lucifer, which evolved from the ultimate skill called Pride after he fought the Frost Dragon, Velzard.
1 Milim Nava
Veldanava’s daughter and Rimuru’s best friend and ally, Milim Nava can be mistaken for a child when she’s really a Dragonoid. She’s the one person able to rival Guy Crimson, and they once battled for seven days.
She uses the ultimate skills, Satanael and Milim Eye. Satanael allows her to use magicules and her anger to extend her endurance to basically infinity, and protect herself by destroying everything in her path. The Milim Eye skill makes her impossible to lie to. Her weapon, the Asura, is the strongest there is.
