[One Piece Fanfiction] + [Invincible Male Protagonist] + [Decisive and Ruthless]

Starting in God Valley, facing a three-way battle between the Navy, Roger, and Rocks, Lynn, a slave, makes a fourth choice—to devour the era!

Having obtained the power of the Mythical Ancestral Dragon, he not only didn't run away, but instead kidnapped the sea overlord, Rocks!

Thus began an unprecedented path to hegemony.

He doesn't want to be the Pirate King because the entire ocean will be his territory; he doesn't want to be a revolutionary because he wants to establish an order even more absolute than that of the Celestial Dragons!

"Im, get off that throne! From this day forward, I, Lynn D. Caesar, am the one and only king of this world!"

Reborn into the adrenaline-pumping world of Tokyo Avengers! With a system, Manji will live a different life. He forms his own team, establishing Ten'a. He saves Ichigo and the field, preventing tragedy. Mikey, who was invincible in Tokyo, is defeated by Manji. He subdues the Black Dragon, and Shiba Taiju's power is suppressed by Manji. He defeats Tenchu, and Kurokawa Isana is stunned by Manji. He consumes Brahma, and Kawashiro Senju submits to Manji! He crushes the Sixth Generation Danpora, and Terano Minami falls before Manji. He sweeps through the hot-blooded district SWORD! He takes on Kowloon! He encounters the Kengan Ashura world again, and wins the Kengan Deathmatch Tournament. With absolute ruthlessness, he reaches the pinnacle in this fictional world.

(He is kind to his own people, but very perverted towards ghosts, and tortures them fiercely. There are many elements.)

Su Yu wears Demon Slayer and becomes stronger by writing in his diary every day, but he doesn't know that his diary will be seen by others.

I got the Zoro sword at the beginning, and I thought I could start the road to becoming a dragon hero directly, but I didn’t expect that this sword came with a debuff of getting lost!

He got lost just by turning a corner when he went out. A normal person suddenly became directionally challenged. Su Yu felt very angry but had no place to vent.

But when he got the "Undead Killer" that could cause more damage to ghosts, his whole demeanor suddenly changed.

"A ghost, right? You like to eat people, right? You're more evil than me? I'm even more evil than you!"

So.

The style of Su Yu's diary also changed suddenly.

[I nerfed a few more ghosts today. I've been stuck in this mess for so long, and now I can finally let it out! ]

[Don't run! You guys are good at eating people! Now let's see who will kill whom!]

[The screams of ghosts are truly delightful. Even if you scream at the top of your lungs, no ghost will come to save you. Just surrender!]