The Retired Hero is an Extra - Chapter 54 - : Dungeon Entry

Arcane energy weaves the world, and the ninja world is no exception.

The Book of Medivh from Azeroth contains knowledge of two worlds.

For mages, knowledge = power.

Enemy country? war? Tailed beast? Otsutsuki?

In front of the Master, tremble!

Time, for me to control; space, let me roam.

Parallel time and space, self rise, regret unfortunately, self end.

In the name of the new guardian—

Master, open a cross-border portal!

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The boutique “Pirates of Light Swordsman” has been finished, character guarantee~

- Description from novelbuddy

A cultivator with normal aptitude finally found a treasure that could change his life but to his disappointment, he could not directly benefit from it.Author's Note: The MC is not smart and serious. He is goofy most of the time. This is a harem story. Leyvi will have many women. Thank you for reading and supporting me.Warning: My grammar is shit. Proceed with caution.

After 2000 years has passed, the ruthless demon lord has just been reincarnated! But his aptitude at an academy for nurturing candidates for demon lords is, “Inept”!?

...[Inside an underground basement]“You are going to die for nothing, hahahaha,” the old man's voice thundered through the room, sending chills down my spine.Step.With a swift and ruthless motion, he lunged forward, his sword slicing through the air and slashing my throat, crimson droplets staining the darkness.“We'll see,” I whispered defiantly, my final words escaping as a mere breath against the impending darkness.Slowly, inexorably, my consciousness slipped away, and I descended into a deep, unfathomable slumber.“Huh!?” My eyes fluttered open, and I found myself seated in a bustling tavern, the air thick with laughter and the clinking of glasses.In front of me stood a captivating lady, her beauty juxtaposed with an angry furrow upon her brow, threatening to shatter the harmony of the jovial scene.“Don't follow me around!” Her words pierced the air like shards of ice, the intensity of her emotions palpable as she cast a resentful glare in my direction, before swiftly departing from the tavern....Am I trapped within the confines of a game? The fragments of my shattered common sense scattered before me, leaving me to question the very fabric of my reality.