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Tesso the Yokai: Japan’s Iron Rat Spirit

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Tesso, or the “Iron Rat,” is a fascinating yokai in Japanese folklore, known for its unusual origin story and unique appearance. Once a human monk, Tesso was said to have transformed into a rat-like spirit after experiencing deep frustration and resentment. This yokai not only carries a story of unfulfilled promises and disappointment but also has a significant place in Japanese cultural heritage. Today, the yokai is linked to Jūhachi Myōjin Shrine, known affectionately as “Nezumi no Miya-san” or “Shrine of the Mouse.”

The legend of Tesso has endured through the ages, even appearing as a character in the popular game Nioh 2, which brings traditional yokai into a modern storytelling format. Let’s delve into the history of Tesso, its ties to Jūhachi Myōjin Shrine, and how it’s depicted in Nioh 2.

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What is Yokai “Tesso”?

Otsuki
Otsuki

I was thinking Tesso was just a greedy Yokai.
But…the truth was different!

Origin of Yokai “Tesso”

Tesso’s story is believed to have originated in medieval Japan. According to legend, Tesso was once a respected monk who, after experiencing betrayal and a broken promise, transformed into an iron-skinned rat yokai. This transformation was not due to a thirst for power but rather the pain of betrayal. The monk’s intense resentment led to his transformation, symbolizing how negative emotions can manifest in powerful and unusual forms. His spirit turned into Tesso, taking on an iron-like form to withstand attacks and seeking vengeance in the form of a yokai rat.

Characteristics of Tesso

In folklore, Tesso is depicted as a giant rat with an iron body, almost invulnerable to ordinary weapons. This feature made Tesso a feared figure, as he could not be harmed easily, allowing him to roam freely in sacred and secular spaces alike. Often portrayed as leading a horde of rats, Tesso’s presence was thought to bring misfortune, especially to places that disregarded the respect and care of promises or sacred agreements.

In Japan, Tesso’s story serves as a cautionary tale about the importance of keeping promises and the consequences of betrayal. This yokai symbolizes the strength of unresolved anger and the lengths to which one might go when deeply wronged.

The Connection Between Tesso and Jūhachi Myōjinja

Tesso the Yokai: Japan's Iron Rat Spirit

Jūhachi Myōjin Shrine, the “Shrine of the Mouse”

Located in Nara Prefecture, Jūhachi Myōjinja is dedicated to the spirits of mice and is affectionately known as “Nezumi no Miya-san” (Shrine of the Mouse). This shrine is historically connected to the Tesso legend and stands as a place to honor and appease the spirits associated with mice. Locals visit the shrine not only to pay respects, but also to seek blessings for agriculture and protection from misfortune. Over the centuries, Jūhachi Myōjinja has become a unique site of worship for those who feel drawn to its peaceful yet mysterious atmosphere.

The Legacy of Tesso’s Story at Jūhachi Myōjinja

In Tesso’s story, the monk was not motivated by greed but rather by the pain of a broken promise. This unfulfilled vow caused such strong resentment that he ultimately transformed into a yokai, a rare instance where human emotions led directly to a supernatural form. Jūhachi Myōjin Shrine, as the place associated with Tesso, continues to be a site where people reflect on integrity and the importance of honesty in relationships.

Today, visitors to Jūhachi Myōjin Shrine often come to ponder the consequences of promises made and broken, finding personal meaning in Tesso’s story as a reminder to honor commitments.

Tesso’s Appearance in Nioh 2

In the game Nioh 2, Tesso is featured as a formidable yokai enemy. True to the legend, Tesso appears as a large, iron-like rat with a fierce demeanor. The character design captures Tesso’s vengeful spirit, Players face Tesso as a test of strength and strategy, and his appearance offers a way to bring this ancient yokai legend to life, allowing gamers to engage directly with the folklore.

In Nioh 2, Tesso embodies his legendary characteristics, combining physical strength with an aura of resentment. For players interested in Japanese folklore, encountering Tesso offers an immersive glimpse into the story of a betrayed monk who turned to darkness, a compelling mix of historical myth and modern storytelling.

Tesso Q&A

Taro
Taro

That attack from the picture above is deadly!

Q
What kind of yokai is Tesso?
A

Tesso is a legendary yokai in Japanese folklore, originally a monk who transformed into a vengeful iron-skinned rat after suffering from a broken promise.

Q
Why is Jūhachi Myōjin Shrine associated with Tesso?
A

Jūhachi Myōjin Shrine is linked to Tesso as it is dedicated to mouse spirits and holds cultural significance as the place where Tesso’s story is remembered and respected.

Q
How is Tesso portrayed in Nioh 2?
A

In Nioh 2, Tesso appears as a powerful enemy with a menacing iron body, staying true to his folklore origins and challenging players in a supernatural setting.

Conclusion

The legend of Tesso offers a unique look into Japanese folklore, revealing how even the deepest disappointments and betrayals can take on a life of their own. As a yokai, Tesso serves as a warning against the consequences of unfulfilled promises and the destructive power of resentment. Today, Tesso’s story is honored at Jūhachi Myōjin Shrine, where it continues to remind people of the importance of trust and sincerity in human relationships. For those who encounter Tesso in Nioh 2, the game provides an engaging way to experience this classic story of betrayal and transformation, bridging traditional lore with contemporary culture.

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