20 Strongest That Time I Got Reincarnated as a Slime Characters (Ranked)
That Time I Got Reincarnated as a Slime is certainly not the most appealing isekai anime title you’ll encounter, but the show’s been up and running for three years now and its weirdness has attracted a lot of fans around the world. Based on a series of light novels, That Time I Got Reincarnated as a Slime has been adapted into a manga and an ongoing anime series that also includes several OVA episodes and a spin-off series. This article is going to bring you a list of the 20 That Time I Got Reincarnated as Slime‘s strongest characters.
The characters are going to be ranked from 20th to 1st, based on their skills and powers. To illustrate why we have listed the characters as we did, we’ll bring you some basic biographical information as well as their basic skills, which will show why these characters are ranked as they are.
Most powerful That Time I Got Reincarnated as a Slime Characters
20. Shuna
Shuna is one of the third group of subordinate monsters named by Rimuru, who evolved from an ogre to a kijin. She was originally the princess of the ogre tribe and although she had the talent to use magic, she was a sheltered girl but quickly befriended the goblinas. Shuna lives in the capital of the Jura Tempest Federation: Rimuru City.
Skills:
- Battle Goddess
- Chaotic fate
- Spiritual being incarnation
- Cook
- Certain Outcome
- Optimal Action
- Ultraspeed Regeneration
- Perfect Memory
- Ogre Berserker -> Battle God
- All-Seeing Eye
- Magic Sense
- Multilayer Barrier
- Spatial Travel
- Haki
19. Shion
Shion is a monster who belongs to the third group of subordinates appointed by Rimuru, and is also his main secretary and bodyguard. Shion lives in the capital of the Jura Tempest Federation: Rimuru City. She is also the leader of the Yomigaeri and one of Rimuru’s strongest fighters. When she was revived during the Harvest Festival in Rimuru and transformed into an Evil Oni, she reached the strength of a Disaster-class monster.
Skills:
- Battle Goddess
- Chaotic fate
- Spiritual being incarnation
- Cook
- Certain Outcome
- Optimal Action
- Ultraspeed Regeneration
- Perfect Memory
- Ogre Berserker -> Battle God
- All-Seeing Eye
- Magic Sense
- Multilayer Barrier
- Spatial Travel
- Haki
18. Hakurō
Hakurō is one of the third group of subordinates appointed by Rimuru Tempest. He also lives in the capital of the Jura Tempest Federation: Rimuru City. An elderly swordmaster whose abilities were legendary even as a nameless ogre, but after being accepted and named by Rimuru, he becomes even stronger.
Skills:
- Martial Master
- Heaven Gaze
- Thought Acceleration
- Ultra Acceleration
- Foresight
- Mystery
- Magic Sense
- Multilayer Barrier
- Steel Strength
- Coercion
17. Souei
Souei is an ogre belonging to the third group of underlings named by Rimuru Tempest. He is Rimuru’s loyal shadow and the leader of the Jura Tempest Federation’s shadow squad. He also lives in the capital of the Jura Tempest Federation: Rimuru City.
Skills:
- Shadow Striker
- Thought Acceleration
- Ultra Acceleration
- Insta-Kill
- Espionage
- Magic Sense
- Multilayer Barrier
- Spatial Travel
- Body Double
- Sticky Steel Thread
- Coercion
- Apply Poison/Paralysis/Rot
- Thought Communication
16. Benimaru
Benimaru belongs to the third group of subordinate monsters named by Rimuru Tempest. Originally an ogre, he was unsure of his servitude and asked that it be temporary, but after being named, he evolved into a kijin and immediately became Rimuru’s most powerful subordinate, choosing to serve him permanently.
Skills:
- Generalissimo
- Thought Acceleration
- Thought Domination
- Predictive Calculation
- Inspire Forces
- Magic Sense
- Heat Sense
- Multilayer Barrier
- Spatial Travel
- Fire Domination
- Black Flame
- Magic Burn
- Haki
- Steel Strength
15. Ramiris
Ramiris is of the first generation of demon lords, alongside Guy Crimson and Milim Nava, the third seat of the Octagram and the steward of the Labyrinth. She is also the leader of the heroes, said to grant them divine protection. She maintains balance throughout the world. She currently resides in Tempest.
Skills:
- Labyrinth Creation (Small World)
- Telepathy
- Aspectual Magic
- Mind/Mental Magic
- Illusion Magic
- Instant Death Magic
- Elemental Magic (All Types)
- Space Magic
- Fire Magic
- Explosion Magic
- Wind Magic
- Lightning Magic
- Water Magic
- Ice Magic
- Earth Magic
- Spirit Magic
14. Frey
Frey became a self-proclaimed Demon Lord around the same time as Clayman and Carrion, and is thus considered one of the youngest Demon Lords of the Ten Great Demon Lords. Like Clayman and Carrion, Frey became one of the youngest Demon Lords as a way to actively increase their personal power base.
Skills:
- Magic Jamming – This skill grants Frey the ability to disturbs the flow of Magicules around herself. Making her strongly resistant to Magic and disturbs any external uses of Magicules while within her effective range of her skill.
- Magic Sense
13. Carrion
Carrion, also known as the Beast Master, is the king of the Beast Kingdom of Eurazania and former demon lord of the Ten Great Demon Lords, now serving alongside Frey as an aide to Milim Nava.
Skills:
- Royal Beast – Allow the user to transform them self into a chimera like beast form that encompasses all main beastman types, being an evolved version of the Beast Transformation skill common to the Beastman race.
- Demon Lord’s Haki – Amplifies the user’s aura and coerces weaker beings into submission.
- Ultraspeed Regeneration – Allows the user to heal injuries and even regrow limbs.
- Multilayer Barrier – Allows for the deployment of several barriers each with one of the user’s resistances. Damage absorbed drains an appropriate amount of the user’s magicules.
12. Hinata Sakaguchi
Hinata Sakaguchi is the leader of the Ten Great Saints of the Western Holy Church and a Japanese Dissenter. She is second only to the Holy Emperor in authority within the Church.
Skills:
- Usurper/Surpasser (Absorbed by Chloe Aubert into Yog-Sothoth)
- Usurpation – Seizes a target upon completion, allowing the user full control over it. Can be activated on any skills or arts that Hinata can see. The skill only works on beings of equal strength or stronger than Hinata, and when used it will either “Fail” or “Succeed”. If the being is weaker than Hinata, the result will show “Not Applicable”. The stronger the target is the harder it becomes to seize. There is no actual limit to the amount of attempts made on any single target, so even if the skill fails, she can just try again.
- Seize – Takes away her opponent’s skills.
- Copy – Learns the skills herself.
- Mathematician/Unchanging One
- Analyze & Assess
- Thought Acceleration – Able to speed up the user’s thought process almost to where the world seems frozen in time. Hinata managed to rev her thought process by a thousand times while fighting Rimuru during the paladin’s attack.
- Compute Prediction – Predicts the opponents attack and makes a visual path in the user’s mind.
- Magic Sense
11. Diablo
Diablo, also known as Noir, is one of the Seven Primordial Demons and a leader of the Jura Tempest Federation as Second Secretary to Rimuru Tempest.
Skills:
- Tempter
- Thought Domination
- Charm
- Solicitation
- World of Temptation
- Reality Exchange
- Great Wiseman
- Thought Acceleration
- Chant Annulment
- All of Creation
- Law Manipulation
- Universal Sense
- Multilayer Barrier
- Spatial Travel
- Demon Lord’s Haki
10. Dagruel
Dagruel is a demon lord from the race of giants and the fourth seat of the Octagram. His territory encompasses the Wastelands in the westernmost part of the Central Continent.
Skills:
- Hardened Defense
- Weapon Destruction
- Existence Destruction
- Magic Immunity
- Neutralize Attribute
- Ignore Defense
9. Velgrynd
Velgrynd, also known as Scorch Dragon, is the third oldest of the four True Dragons. She is in love with Emperor Rudra and will stop at nothing to help him fulfill his wishes.
Skills:
- Unknown
8. Velzard
Velzard, also known as the White Ice Dragon, is the second oldest of the four True Dragons and the partner of Guy Crimson.
Skills:
- Unknown
7. Veldora Tempest
Veldora Tempest, also known as the Storm Dragon Veldora is one of the four True Dragons. He was sealed by a hero in the past before meeting a slime he named Rimuru. At Veldora’s request, Rimuru also came up with a common name for the duo – Tempest. After being released, he chose to reside in the Jura Tempest Federation as a patron deity.
Skills:
- Faust, Lord of Investigation
- Thought Acceleration
- Appraisal
- All of Creation
- Probability Manipulation
- Pursuit of Truth
- Investigator (Evolved into Faust)
- Thought Acceleration
- Appraisal
- All of Creation
6. Chloe Aubert
Chloe had been summoned by one of the Western Nations, but since she could not manifest a unique ability as a child, she was doomed to die like many other summoned children because the energy that could not form a unique ability overflowed. Therefore, even though she has a very high number of innate Magicules for a human, she was sent to the Freedom Academy due to her low life expectancy.
Skills:
- Yog-Sothoth, Lord of Space-Time
- Unlimited Imprisonment
- Absolute Severance
- Space-Time Domination
- Time Stop
- Usurper
- Usurpation
- Forced Usurpation
- Copy
- Sariel, Lord of Hope (Inherited from Granbell Rosso)
- Consecutive Meltslashes
- Life and Death Manipulation
- Fortitude
- Unlimited Imprisonment (Evolved to Yog-Sothoth) – Allows the user to seal the target in an infinitely complex number of spatial dimensions. Nearly as powerful as an Ultimate Skill even True Dragons aren’t safe from this ability.
- Absolute Severance (Evolved to Yog-Sothoth) – Allows the user to unleash devastating attacks by manipulating space. As powerful as an Ultimate Skill it is capable of damaging even True Dragons.
- Time Travel – Allows the user to do a limited leap to the past. It’s a one-way trip, and the conditions to use this ability are complicated and limited.
- Usurper (Evolved to Yog-Sothoth) – Allows the user to copy and steal Skills and Arts.
- Mathematician (Returned to Hinata) – Allows the user to accelerate thoughts and calculate future events.
- Magic Sense – Allows the user to perceive things by observing the interactions between magicules and light/sound waves.
5. Milim Nava
Milim Nava is the second ranked demon lord of the Octagram. She is one of the strongest and oldest of all the Demon Lords, known as the Destroyer, a Demon Lord with the threat level of Catastrophe. Milim is a carefree person who just wants to do something to relieve her boredom
Skills:
- Milim Eye
- Dragon Eye
- Lie Detection
- Analyze and Assess
- Magic Measurement
- Milim Ear
- Gossip Detection
- Ultra Hearing
- Spatial Motion
4. Yuuki Kagurazaka
Yuuki Kagurazaka is a Japanese Otherworlder summoned to this world who was also formerly the Grandmaster of the Free Guild. He has some connection to Shizue and thus to Rimuru. He is currently the commander of the Eastern Empire’s Mixed Corps, one of the four heads of the Imperial Military.
Skills:
- Mammon
- Greed (Evolved to Mammon)
- Desire Domination – Allows the user to manipulate and amplify a person’s desire to bend them to their will. The user cannot control anyone who’s desire (Especially Greed) is greater than theirs.
- Death Wish – The pinnacle of Greed’s power, the user reverses the targets desire to live and turns it into a desire to die.
- Greed Flare – Converts the user or targets soul energy into physical force to devastatingly increase their power.
- Creator
- Skill Creation – Allows the user to freely manipulate their soul energy and create any skill/ability they desire.
- Analysis – Allows the user to fully analyze anything they touch and any skill that they see used directly (Including Unique Skills).
- Anti-Skill – A body composition that invalidates skills, abilities or magic the user touches. This however, does not work on purely physical phenomenon, such as the burning of oxygen due to fire. It also cannot counteract two or more properties when it comes to magic and arts fusion.
3. Guy Crimson
Guy Crimson, also known as Rouge, is known as the oldest of the Primordials and the first seat of the Octagram. He resides on the continent of ice.
Skills:
- Time Stop
2. Veldanava
He is the father of Milim Nava. When his human wife was pregnant with her, most of his powers were transferred to Milim. Since then, that kind of behavior has been taboo among powerful monsters. Veldanava used the last of his energy to create a pet dragon as a gift for Milim. The loss of his powers destabilized his body, so Veldanava discarded it and reincarnated as a human.
Skills:
- TenSura
- Omnipotence
- Omniscience
1. Rimiru Tempest
Rimuru Tempest, formerly known as Satoru Mikami, is the main protagonist of That Time I Got Reincarnated as a Slime. A partner and best friend of the True Dragon Veldora Tempest, Rimuru is the founder and king of the Jura Tempest Federation in the Jura Forest. He is one of the demon lords of the Octagram. He lives in Rimuru City, the capital of the Jura Tempest Federation.
Skills:
- Mind Accelerate – Lets user extend their thoughts by up to a million times.
- Analyze and Assess – Analyzes and assesses the target.
- Parallel Operation – Operates on any matter the user wishes to analyze, separating it from the regular thought process. Any process under Parallel Operation is affected by Mind Accelerate and therefore sped up by a million times.
- Cast Cancel – Annuls the casting period required when using Magic, etc.
- All of Creation – Allows the user to fully comprehend any non-concealed phenomenon as long as they have a certain amount of knowledge beforehand.
- Synthesize – Transforms two differing targets into a single object.
- Separate – Release the properties inherent to the target and make it into a separate object.
- Skill Modification – Allows the user to modify or even evolve skills under the right circumstances.
- Future Attack Prediction – Allows the user to see from a series of outcomes which is going to happen. (The results that have been calculated have a 100% chance of occurring).
