Villain: Ultimate Mutation System in the Alternate World - Chapter 604 The Better One?

Crossing into the world of Naruto, and acquiring the One Piece system, with all the powers of the world of One Piece, swordsmanship, devil fruit, domineering.

-Do you think that your fire is very powerful? I have the burning fruit.

-Do you think that your thunder is very powerful? I have a thundering fruit.

-Do you think that your otter is very powerful? I have the frozen fruit.

-Did you said you want to die? Don’t worry, I also have a nickname: Death Doctor.

- Description from Novelupdates

One day, Yoichi who grew up while not knowing his parents has received the news of his father’s death. His father left behind a testament——which said he is to pick only one out of five ‘little sister candidates’?!

Noan transmigrated to a world that blends advanced technology and magic, with countless gates leading to other strange worlds.In that world, he took over the body of a young man of the same name who had just died.He realised that in this world, he was one of the 0.1% of the population who had the ability to become a landlord and had the right to go to mysterious lands to build territories.However, he was only a Rank F lord, the lowest and weakest rank in the landlord rankings.Besides, his family was like blood-sucking demons. Not only did he wear out his labour, but his younger brother was also jealous of him becoming a landlord, so he hired thugs to beat him to death.Fortunately, the 'old Noan' died, giving the 'new Noan' a body to live again.This Noan was not a coward; he was not weak like the 'old Noan'.And of course, the goddess of luck smiled upon him. Although he is only a Rank F Landlord, who can only summon useless Skeletons, he possesses the only Rank SSS talent in the world - Almighty Fusion.He can fuse ordinary skeletons and transform them into the King of the Undead, the lord of hell.He can help a weak succubus become the almighty fallen angel.He can turn a small lizard into the King of Dragons, the nightmare of all creatures.Besides, Noan also begins to lift the curtain that has hidden the truth about the new lands.

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.