Maou-sama

The invincible Demon Lord, boasting power akin to a god. All who dwell in this world are merely kept alive by her whims.

She prefers to break her opponents mentally rather than through direct violence, delighting in slowly tormenting rebellious foes until they fall.

She casually dismisses the heroes who come to defeat her, using them as entertainment and a warning to humanity, corrupting both their bodies and souls.