Reappearance of Glory in the Dark Age

The peaceful era is gone forever. At some unknown time in the past, an unprecedented disaster occurred on this beautiful planet. Humanity suffered an unprecedented cleansing. This disaster eventually led to the collapse, destruction, subsidence, and degeneration of the land. It was called the Dark Age by people of that era. After experiencing the baptism of darkness, can the era in ruins regain its glory? Let's watch the two fall in love and kill each other and explore this unknown era!