Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 16 - 16-48. Trial of Zaikuon (3) [Revised]

Shi Hao, a young man, managed to turn the tables on a powerful figure trying to possess him. He gained countless cultivation techniques, martial skills, formations, alchemy knowledge, and talisman arts, setting him on a legendary path.Now, every genius and tyrant must bow before him.Those who refuse? They'll be eliminated!

The strongest King of Soldiers returns to the city of flowers, becoming his fiancée's cohabiting bodyguard!

Crossing to One Piece world, he became Roger’s younger brother.

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.