One Piece: Unreal Adventure - Chapter 88: Our captain doesn’t fear any challenge.

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

After their first night, her husband departed for an expedition without another word.

He comes back three years later, this time as a famous knight in the whole continent.

How would Maximilian face him on his return?

The dark underground dungeon was filled with countless ancient relics and treasures. Eerie, deformed, cursed objects... The abyss, catacombs, Ancient Gods, mythical races... Mechanics, cursed seal implants, and the gargantuan black towers... A peculiar mix of Alchemy, a drop of steampunk, two spoons of supernatural mystery, blending into a vibrant and colorful fantasy world. I am a puppeteer Alchemist. All that my eyes behold, becomes my puppet. Alone, I am an army!

Xue Dongting was a singsong girl plucked from her small border town to become the consort of the crown prince. Little did she know she would be murdered by his own hand.

Now reborn, she has a chance for a do-over. This time around, she will marry that fisherman from the next village over and live a quiet, peaceful life, away from the scheming intrigues of the imperial family.

It’s just that, this lowly fisherman is not quite what he seems…

Set on a giant, almost finished bridge between Sadogashima and Niigata. Abandoned by the government, the bridge, and the giant man-made floating island at the center, has become a city of criminals and societal drop-outs.

Set in the same world as Durarara, but 15-20 years later. There is almost no overlap between Etsusa Bridge and the other novels.