Summary:

In this world of swords and magic, knight Chris♂ is persecuted and transformed into the Demon lord Clyris ♀. However, fate intervenes, and she combines the power of the past and present, thus the strongest and most evil king in history is born! She begins her revenge against the empire that once persecuted her. Wait, you said a wicked noble has risen in the borderlands? TN description ( it's Kingdom building focus story where goal to overthrow the current world system using earth technology)