MTL - Country Weapon - Chapter 209 find fault...

A mysterious and strange world, a human civilization lacking power, and a horrible and turbulent world of human life, Luo Kai survived humblely as a prisoner. Pain and suffering honed his will. War and killing promoted his growth. He suddenly looked back. Is already one of the most powerful beings in this world.

- Description from novelbuddy

The Final Haven Kingdom.

The last known habitable place for humans. Protected by it's faithful Knights, it's walls were destroyed and rebuilt over and over again, signifying it's strength and unwillingness to bow down before the forces of evil.

Raven, a young man who's soul returned back in time with his memories intact, what are the changes that he will bring to prevent the kingdom's destruction?

Join his adventures along with his family, friends and his lover to find out what is his own Way of being a Knight.

The second prince has come of age. To celebrate the advent of such an occasion, the search for a suitable bride began. My younger sister was expected to go to the Royal Palace as a candidate. However, despite this, she eloped the day before her departure. I, the older sister she left behind, looked almost exactly like her – so much that we were often mistaken for twins…

One month, right? For just one month, shall I substitute in for my sister?