The Demon King Who Turns Heroes into Girls Seems Destined to Become a Blond Homewrecker

[Warning: Not a Traditional Gender-Bender, All-Female World, One-on-Many Love and Hate]

In her previous life, Fanyunyi Elsa was a demon lord with three No's.

The three No's meant no empathy, no conscience, and no limits.

After the hero she had kept out of boredom died in her care, Fanyunyi was consumed by boundless hatred.

To take revenge, she bound herself to a Death Regression System that had fallen from the sky.

Because she hadn't read the privacy policy before binding, the System turned her into a helpless baby and tossed her into a world of witches.

Fortunately, fools sometimes have good luck. A kind married couple adopted her and named her Matianna.

Matianna tried calling out to the System, but it always showed that it was out of service.

The hero she longed for never appeared before Matianna either, because men simply didn't exist in this world.

With no other choice, Matianna, realizing she'd been tricked, made killing the System her first goal and began her journey as a witch.

But one day, after Matianna entered the Witch Academy, the System suddenly came back to life.

The System told her that the young witch who had taught Matianna magic since childhood was none other than the hero from her previous life.

When she learned this, Matianna was hiding in the shadows like a rat in a filthy ditch, watching the black-haired witch embrace a wealthy young lady.

When she saw tears of happiness slide down the black-haired witch's face, the heart that had not stirred intensely for over a decade was once again seized by fierce hatred.

Even if it costs me everything, I will ruin your life.