One Piece: From the Rocks Era to King of the World - Chapter 387 - : Dividing the South China Sea

A part-time job contract. He became the cold CEO’s imitation boyfriend. He merely wanted to earn a few small bucks and live a comfortable life, but a pity, he was in constant turmoil since then. Well, life had something else for him despite his wishes.“That… beauty, will there be an increase in wages for conversion from ‘boyfriend’ to ‘husband’?”

- Description from Novelupdates

A data loving young man from Earth has an accident which transports him to a dark land filled with terrifying creatures and magical powers. Fortunately for him, he has a Biological Assistance Chip to ease his path. However, things in this bizarre and strange world are not always as they seem, and, though it is a tremendous asset, the chip doesn’t always work as expected. With all of the crazy creatures and magical mayhem around him, one can only wonder what the future holds for this young man…

“Your Majesty, please break-off my marriage with Her Highness the Imperial Princess. I fell in love with Lady Adriane Reese.”

“Six engagements, Six break-ups.”

The princess’s fiancé always had an affair with the maids!

“I don’t want to marry the crown prince, I want to live with my father forever…”

“Such a useless being. Begone!”

The princess who is known to be weak and s*upid, Apollonia.

But she has another hidden face…

“It’s because the throne is hard to obtain, my father also spent 10 years on trying to kill my mother, the empress.”

As Apollonia grinned, her red eyes shone intensely. Usurpation of the throne.

Her goal was clear. She was never shaken.

‘I want to live my life with my father.’

To be exact, I want to live my life where my father is seated.

Please wait, father. Your daughter is on her way.

To take back everything that was stolen from me.

The strongest Demon Lord dies, and reincarnates as a human. Not only that, he because of various incidents turns into the hero’s best friend.

Follow his journey as he tries to help the hero escape his fate, and on the sideline to conquer the continent while he’s at it.