Demon King of the Royal Class - Chapter 30

(Naruto + Single Heroine Tsunade + Romance + Action)A failed author transmigrates into the Naruto world, becoming the younger brother of Konoha’s White Fang, Sakumo Hatake, and the uncle of Kakashi. He gains a cheat ability—enhanced cellular activity.Coincidentally, just before the Second Shinobi War, he participates in a Jonin meeting where he supports Tsunade's proposal ahead of Dan Kato, marking his first encounter with her.From then on, he launches an intense pursuit, winning her heart during the war.Tsunade: “Kawakaze, why do I keep losing to you?”Kawakaze Hatake: “Because I’d like to live a few more years...”Kakashi: “My uncle is amazing, I’m his biggest fan!”Kawakaze Hatake: “Keep it low-key, keep it low-key.”

It was the Great Age of Pirates, surging forward with their thousand sails unfurled.

One young man from earth ate the Goro Goro no Mi and joined the Marine.

Justice vs Evil, Freedom vs Tyranny, the colliding waves between them would never cease.

But all of this…..”I couldn’t care less about!!”

At the summit of the war, surrounded by ten thousand people, Ron held a thunder halberd in hand and walked forward with strong steps.

Rivals meet face to face, but only one could become the King.

- Description from Novelupdates

“Hello, have you ever been in a relationship?”“Of course not.” Tenkuji Yuu shook his head, “I genuinely have never had a girlfriend. If you don’t believe me, ask my system. If anyone has memories of being my girlfriend, I’ll admit defeat, okay?”“Then who are they...?”Yuu turned and saw Yukinoshita Haruno, Yuuki Asuna, Natsukawa Masuzu, Yukinoshita Yukino, and Kasumigaoka Utaha walking towards him, with expressions as if they were ready to confront him.“Yuu-chan, I’ve remembered you just abandoning me at the hotel.”“Yuu-kun, I told you, I won’t forget, I will definitely remember you, and I definitely won’t forgive you!”“Yuu, boyfriends can be ‘Ora Ora’-ed for three pages... are you ready?”“Tenkuji-kun, as long as we haven’t broken up, you and I are still a couple.”“Heroine with amnesia, hero leaves... I don’t like these old-fashioned, stomach-churning plots, Yuu-kun.”“...You guys are weird.”Yuu maintained a calm expression, but inwardly he was panicking and getting ready to run.“System, get out here and explain this to me!”System: [Meow]Author: A Passing Chūnibyō Youth

In every story, there exists the hero and the villain, the protagonist and the antagonist.And like every story, the hero always wins, and always gets the girl.But what happens now that I died and became a villain in the last book I read? Not even a proper villain, but one that the protagonist kills in the early chapters.I don't want to die again, and I don't want that simp of a protagonist to walk all over me. Maybe I should just become a better villain.I've always admired the smart badass villains that took on the protagonist. Maybe I can be one of them, maybe I can win—the first villain to win against the hero.I'll rewrite this story into one where I become the greatest villain. Call me sick or evil, but it's my time to shine.