Heroines, Villainesses, and the Hero's Yandere Harem? I want them all!

I was betrayed in my first life.

A cripple, broken and discarded—

I died after catching the one I loved in bed with the only person I ever called a friend.

That was the start of real torment.

When I woke up, it was in another world.

A goddess stood before me.

She told me I could go back.

Back to my world.

Back to everything I lost.

All I had to do… was play my part.

The side character.

And I did.

I followed the script.

Played my role to perfection.

They hated me.

Mocked me.

Used me.

Again and again.

But I kept going. Because I believed her.

Because I wanted to go home.

Then one day, I found out.

The hard way.

It was all a lie.

There was no going back.

There never was.

She used me.

Again.

Just like everyone else.

Thrown away like trash once I outlived my usefulness.

That was the day something inside me snapped.

And so, I made a vow.

I would take everything from her.

I would enslave every single heroine she chose.

And I would kill the hero she placed all her hopes on.

If she wanted to protect this world…

Then I would burn it down.

But the more I tried, the more things started to change.

And then one day—

I found one of the heroines.

One of the hero's yanderes I had enslaved.

She stood there, trembling, a knife in her hand.

“You’re not going anywhere,” she whispered, eyes wild.

“I won’t let them have you. You belong to me.”

...What. The. Fuck. Is. Happening?!