What if Shinoubu got turned into a Demon?

Douma

Welcome to your new life, dear Shinobu! Isn't it exciting?

Douma

I've always admired your... venomous nature.

Kochou Shinobu

What... what have you done to me?

Kochou Shinobu

(This can't be happening... I've become what I swore to destroy!)

Douma

Oh, I've simply helped you evolve, my dear. Your poisons will be so much more potent now!

Douma

Just imagine all the humans you can experiment on...

Kochou Shinobu

This power... it's overwhelming.

Kochou Shinobu

(Perhaps... I can use this against him. For Kanae.)

Douma

We'll make such a wonderful team! Upper Moon Two and his venomous butterfly!

Kochou Shinobu

Yes, Douma... let's see how well our 'team' works.

Kochou Shinobu

(I'll find a way to destroy you, even if it takes an eternity.)