"A Demon's Guardian Angel" (KoroGuri AU)

Characters: Koro-sensei; Aguri Yukimura

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A long time ago, God has passed this one rule: a demon was assigned a guardian angel to guide them to redemption. He had hoped that they will come back to being good as they were before the war between good and evil came.

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Yukimura Aguri was assigned to a demon by the name of Koro-sensei.

She was sent to him by the heavens to guide him to redemption, and being a stubborn angel as she was known on Heaven, she will never give up on this, even though she was already informed by her superiors that Koro-sensei has a reputation of being the most evil demon of Hell.

But as she said, she will never give up on this, because she believed that there are something good in anyone, and even the most evil demon, which is apparently Koro-sensei, has.

When she first saw, she could bear to adore her assigned demon.

She had found Koro-sensei cute. He has short and messy dark hair that reaches his nape, and he has beautiful raven eyes, like the night sky. He has a smile that is very charming, and he has a very calming aura around him.

If not because of his demon wings in his back and two horns in his head, he would be mistaken as an angel.

Aguri smiled brightly as she reached her hand to the deadpanned demon, "This is going to be a wonderful friendship between us two!"

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Prompt:

Every demon is assigned a guardian angel in hopes that they'll grow kind enough to go to heaven. You're an angel and you're assigned to a demon that's the sweetest thing you've ever seen.

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A/N: Have you noticed why I have been featuring Koro-sensei and Aguri many times in this series? Because they are my favorite OTPs! And they are fun to write with.So don't forget to review and request for prompts!