She is the strongest demon king in history, being the last survivor of the ancient demons that got massacred by the humans long time ago, she had trained herself to become the strongest, she even dethroned the previous demon king and beat him in a fight in less than 3 minutes. Doesn't want to be the same as the human race that massacred the ancient demons then, she never invaded the human kingdom during her reign, but humans just kept invading her kingdom and seeing the annihilation of the demons as an act of justice, she has no choice but to kill the intruders. However, 300 years later, she was defeated by the fearless catgirl hero Misha Veronica, and Misha negotiated with the king of the human kingdom, making the king sign a mutual aid agreement with her. Since then, she has befriended Misha and even promised to protect both the human race and demons after Misha leaves for her mission of saving the multiverse.

4