I Am the Only One

He, the king of mercenaries in the 21st century, thought his girlfriend had a deep love for each other, but she let him die at the bottom of the sea. Once he traveled through time, he ended up traveling through time in the body of the most useless prince in the imperial family. Everyone knows that he is the most useless prince. In this world where force is respected, they humiliate him and bully him. Let's see how he reaches bottom and rises to become the king of this world. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.