Tensei Kenja no Isekai Raifu ~Daini no Shokugyo wo Ete, Sekai Saikyou ni Narimashita~ - Chapter 162 - I Tried Negotiating

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

From the outside, Nana’s life seemed simple. She had everything she had ever wanted: a cute but rascally pair of twin brothers, a best friend, and her own restaurant. Nana couldn’t ask for anything more; she was happy and content in her life.

The daughter of a duke, the stuttering Maximilian, married a knight of lowly status at her father’s coercion.

Humanity’s savior. Vanquisher of gods.

Empire’s first emperor, Juan Kalberk Kenosis.

Ahead of his final battle, he is betrayed.

The emperor eyes close as he meets his end…… so he should have.

“Which bastard brought me back to life-eee!!“

After dying and resurrecting, he looks behind the black curtain for the hidden truth. And to stop the rift that’s dividing the world, in the name of heresy he begins his fight against the empire.

The emperor has now returned!