Occupying the position of the most popular isekai anime series, That Time I Got Reincarnated as a Slime, is an ever-growing world of fantasy that includes demons, vampires, magical beings, and so forth.
With a slime being featured as the protagonist, the series is very colorful, in both practical and symbolic sense.
With powers ranging from destroying worlds to attaining godhood, it isn’t easy to gauge the exact strength of characters.
While the anime is still ways away from ending, its web novel has already concluded. Below, I have ranked the top ten strongest characters according to the original source material!
Contains heavy spoilers from the light novel.
Also known as “Continent’s Wrath,” Dagrule is one of the Eight Star Demon Lords. He was the protector of Heaven’s Gates, and later became a part of the second generation of demon lords.
Due to the holy power in his body, he rejected the Demon Lord Seed; however, as the demon lords started to eliminate the giants and the fairies, he awakened as a true demon lord.
He is a Giant whose power increases due to anger, and in his true form, he is extremely powerful.
Velgrynd, also known as the “Scorch Dragon,” is the third of the True Dragon species. After being eaten/swallowed by Rimiru, she was then given a clone body and joined hands with him in the final battle.
She is known for her fire abilities and extreme speed.
With her Flame God Cthugha ability, she can accelerate heat production within the body, causing it to burn into nothingness.
In other words, it is an ability that can freely manipulate the energy composition of the target’s body.
Velzard, known as the “White Ice Dragon,” is the second of the four True Dragons. She is considered the Strongest True Dragon in terms of power and the greatest Magicule store after Veldanava.
In the past, Veldora was often punished and beaten by her, who was much more powerful.
However, by the end, the former became invisible because of Rimiru, and thus Velzard is placed below him in the ranking.
Storm Dragon Veldora is the character that set everything in motion. He is the fourth True Dragon who was sealed by a Hero in the past before meeting Remiru.
After being released, he could inhabit Rimiru’s clones, as well as his origin body.
His impulsive fighting style grew more refined, and analytical after reading manga, and thus stopped wasting Magic power.
With this, he was able to overpower his elder sister Velgrynd, who could easily defeat him in the past.
After a Soul Corridor was established between Veldora and Rimuru, his memories transcend time and space and are accumulated within Rimuru. This means that as long as Rimuru exists, he is immortal.
Chloe is a Summoned Otherworlder and a student of the Freedom Academy.
As she was just eight years old initially, no one expected this young girl to become strong enough to rank as one of the most powerful characters in the series.
After her swordsmanship reached its peak, she became extremely formidable, and with her time-stopping ability from Ultimate Skills Space-Time King Yog Sothoth, she could easily fight with Guy Crimson for three days straight.
Milim, the oldest demon lord, is known to be the epitome of destruction itself. She’s the child of True dragon Veldanava and Lucia and has inherited her father’s powers.
As a genuine Special S Rank Catastrophe-class, she is one of the world’s most powerful beings.
Once she went on a rampage and was only stopped after being pacified by Ramiris and fighting Guy Crimson for seven continuous days.
Her unlimited Magicules reserves, along with the ability Wrathful King Satanael makes her almost invincible.
Yuuki Kagurazaka, formerly the Free Guild’s Grand Master, is one of the series’ main antagonists.
He is either hated or loved among the fandom, and despite being extremely powerful, he is never placed anywhere near the top 10 due to a gag aimed solely at web novel readers.
Yuuki’s power at the final battle was enough to defeat Milim, Guy, Ramiris, Velgrynd, Velzado, Veldora, and many more.
By the end of the series, Rimiru confirmed that Guy almost surpassed Yuuki, and due to this, the latter is placed 4th on this list.
Guy Crimson is the “Lord of Darkness” and one of the oldest demon lords. He is considered one of the most powerful beings in the world and was even considered the strongest Demon Lord before the rise of Rimuru.
He was able to utterly defeat Leon Cromwell in the past, overwhelm the True Dragon, Velzado, and stalemate a berserk Milim Nava.
One year after the battle between Rimuru and Yuuki Kagurazaka, Rimuru considered Guy powerful enough to fight Yuuki on even terms.
With his ability to copy skills, he is the only one that could fight Rimiru by the end of the series.
Veldanava, known as the Star King Dragon, is the oldest True Dragon and the creator and god of this world.
He is the father of Milim, and when she was born, most of his powers were transferred to her.
As a result, he manifested himself as the forefather of all dragons and took various powerful forms throughout the series. Other than this, not much is known about him.
Rimiru Tempest is the strongest character in TenSura (That Time I Got Reincarnated as a Slime). He surpasses Veldanava after transcending to a god-level being.
With powers rivaling a god, not only can he journey anywhere anytime he likes, but he can also travel between worlds.
While he starts out as a mere human in a different world to a literal slime in this world, he evolves at an absurd level.
After he becomes a demon slime, his powers further enhance, and he acquires top-tier abilities such as Infinite Regeneration, Universal Thread, and so forth.
Especially during the Great War Arc, Rimuru becomes a True Dragon by engulfing the powers of Veldora and reaches godhood by the end.