Tesso (鉄鼠)

In the depths of a winter's night, when snowflakes danced like tiny ghosts outside the temple walls, I chanced upon an old monk named Kaito. His eyes, once bright with devotion, now seemed to hold a flicker of malevolent flame, as if the very darkness itself had taken residence within his soul.

Kaito told me of a legendary temple hidden far beyond the mountains, where the Tesso's fury still lingered like an open wound. It was said that the vengeful spirit of Raigō, once a revered monk at Mii-dera, still haunted the halls of this forsaken place. His wrath had not abated with time; it only intensified, fueled by his own bitter resentment.

As I listened to Kaito's words, the wind outside began to howl like a chorus of restless spirits. The air grew thick with an eerie scent, reminiscent of decay and corruption. It was as if the very essence of the Tesso had awakened within our presence.

Kaito led me through the winding corridors, his footsteps echoing off the stone walls. We finally reached a small chamber deep within the temple's heart, where a series of ancient murals depicted the life of Raigō. The paintings showed him as a compassionate and wise monk, but also revealed the dark undercurrents that fueled his eventual downfall.

As we stood before these faded works of art, Kaito began to recount the tale of Raigō's betrayal. A rival temple, led by a power-hungry abbot, had conspired against Mii-dera's revered monk. The treachery was so heinous that it awakened within Raigō a maelstrom of wrath, which eventually consumed his very soul.

The Tesso, an unending swarm of rats with eyes aglow like hot coals, had descended upon the rival temple, consuming sacred texts and statues in a ravenous frenzy. Theirs was a destructive power, unmatched by any earthly force. Those who beheld the Tesso's wrath were forever changed, their minds shattered by the horror they witnessed.

As Kaito spoke, the wind outside grew more turbulent, threatening to rip through the temple walls at any moment. The shadows within the chamber seemed to deepen and twist, as if they too were alive with the malevolent energy of the Tesso.

And then, in an instant, it was silent. The howling ceased, the air cleared of its noxious scent, and the shadows retreated into their hiding places. Kaito's eyes returned to their former brightness, his gaze now filled with a deep sadness rather than malevolence.

In that moment, I understood the warning hidden within the tale of Raigō: that unbridled wrath can destroy even the noblest of souls. The Tesso stood as a testament to this lesson, its very existence a reminder of the devastating consequences of allowing unchecked anger and resentment to consume us. As we departed the temple, the darkness seemed to recede, but I sensed that the Tesso still lurked, waiting for its next victim to succumb to the treacherous allure of revenge.