Leo

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Leo
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Gender: Male
Japanese Name: レオ
Chinese Name: 雷欧
Korean name: 레오
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🎙️ Anime Voice Actor

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You Taichi
You Taichi
Japanese(Anime、Voice Actor)

🎬 Appearing Anime

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Mushoku Tensei
Mushoku Tensei
Release date: Jan. 11, 2021

Character Setting

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Leo is a legendary holy beast, a gigantic silver-furred dog who is destined to grow alongside a prophesied savior and help protect the world from catastrophe.

Leo belongs to a rare kind of magical beast that appears only once every few hundred years.

Despite his enormous size of about 2 meters in height, he is still a puppy with a clearly childlike and innocent demeanor.

He is revered as a divine being by the beastfolk.

At the time he appears in the story, Leo is rescued by Rudeus Greyrat after being kidnapped by a smuggling organization.

Leo has a massive canine body covered in shining silver fur.

His overall build is that of a huge dog, impressive and imposing even while still young.

Although he measures around 2 meters, his expressions and behavior are distinctly puppy-like.

This contrast between overwhelming size and youthful innocence makes him both awe-inspiring and endearing.

Leo is classified as a type of magical beast, but he is also known as a "holy beast" among the beastfolk.

Holy beasts are said to be born only once in several centuries, making Leo an extremely rare existence.

His power, once fully matured, is described as overwhelming.

He is not merely a pet or guardian animal, but a pivotal being in the balance of the world.

According to ancient beastfolk tradition, the appearance of a holy beast signals a crisis for the world.

When such a crisis looms, a holy beast is born, grows up over the course of about 100 years, and eventually departs on a journey with the chosen savior.

Together with this savior, the holy beast is said to wield immense power to save the world.

Leo’s entire life is therefore bound up with destiny, prophecy, and the protection of the world.

Among the beastfolk, Leo is treated not just as a rare animal but as a godlike presence.

He is the object of deep faith, reverence, and responsibility.

The Dedoldia tribe, one of the beastfolk groups, has a particular duty to protect Leo.

Their village contains a sacred tree known simply as the Holy Tree, which serves as the center of his protection and upbringing.

In the depths of the Dedoldia tribe’s village stands the Holy Tree, a revered and ancient tree.

Around this tree, a powerful barrier is erected to shield Leo from danger.

Within this barrier, Leo is lovingly and carefully raised until he becomes an adult.

This upbringing period can last around a century, during which his powers and destiny slowly mature.

The beastfolk consider it their sacred mission to watch over Leo until he is ready to journey with the savior.

They see failing this duty as a potential disaster not just for their tribe, but for the entire world.

At one point, Leo is abducted by a smuggling organization that seeks to exploit his rarity and value.

He is captured and held as cargo, treated as a commodity rather than a divine being.

During this crisis, Leo is saved by Rudeus Greyrat.

Rudeus’s intervention frees Leo from captivity and prevents the smugglers from abusing the holy beast’s existence.

This rescue creates a special connection between Leo and Rudeus.

It also restores Leo to the path of destiny intended for him by the beastfolk traditions and the world’s ancient prophecies.

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(Last edited time: May 14, 2026, 10:48 p.m.)

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