Naruto: The Chosen Undead - Chapter 15 - no. Dark Souls

Bob is someone that hate people who praise Lord Buggy D. Clown as the strongest being on One Piece alongside God Usopp. His hate suddenly bring him to his death and even worse, his soul got transferred into Lord Buggy's body. How will Bob live as our Lord and Saviour Buggy?

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

Ash opened his eyes to find that he had traveled to a strange nation of many races, and people were kneeling before him.Before he had time to adapt to the new identity of the Terminus Observer, he was put to jail – as a cult leader.In prison, controlled by a high-tech chip, he was unable to use violence. He also lost all his memories due to the time warp.How could he escape from the prison full of ogres, green-skinned beasts, sorcerers, and elves in this strange nation? And how could he survive the legendary Blood Moon Judgment?“Ding! You obtained a game system – Mage Manual! It includes an illusory world map, which can predict risks and gains, helping you find advantages and trouble, and greatly improve exploration efficiency!”“Ding! You obtained Deadly Berserker Sword Maiden! You can share all skills and upgrade together with her!”“Ding! You encountered an Illusory Vortex! Go straight through the heartland of the Illusory Realm and harvest a lot of experience to create the Silver Wing!”...Is this the legendary system? It not only gives me free skills, but also a skillful fighter?Ash discovered that even though he was in the Otherworld, he could dominate his own destiny with the system, and even...dominate the entire Otherworld!

I reincarnated as a lizard in a martial arts world.“Roar!”“He’s using the lion’s roar!”“To deflect the Ten-Star Power Plum Blossom Sword Technique! Truly indestructible as they say!”“This is… the Heavenly Demon Overlord Technique! It’s a Heavenly Demon, the Heavenly Demon has appeared!”It seems they’re mistaking me for something else.