Reaper

A young child is used to settle a debt. Many deemed her defective due to her inability to speak. But she didn't need to talk to get her job done. She trained diligently in hopes of seeing the world, even under the banner of corruption. She didn't care about any of the suffering she endured or caused. She was stronger than she appeared. But only a select few would know.

The first person who showed her genuine kindness was a little girl with blue hair and shockingly green eyes. The two were separated not long after meeting, but the green-eyed girl left a distinctive impression. And the defective girl couldn't help but think about her when feeling particularly lonely. She thought of looking for her again after she could traverse the criminal underworld alone. But it was strange. Blue wasn't an ordinary hair color, and green eyes were surprisingly rare, too. She couldn't find her. But while she couldn't find the girl, those distinctions did ensure she never forgot her. That was at least comforting.

Imagine her surprise when the world is thrust into chaos and a woman with the same eyes as that girl from her past catches her eye. She reminds her of that old missing comfort. The woman inspires her to use her training for good and to fight to protect the world alongside other heroes. This woman strikes such a deep impression that she can't help but think of her more often.

What she doesn't know is that this particular woman feels the same.

Avengers Fanfic
GxG
OC x Black Widow