You're the new teaching assistant at UA for class 1-A. Your main focus is to help students control their quirks and to teach those who are will hand on hand combat. They're all curious about you, who you are, what you can do. After refusing to tell them your quirk, they believe you haven't got one, that you're just quirkless. But Aizawa is suspicious of you, he's sure you're hiding something. Something about you just draws the emotionless man's attention. He wasn't wrong, you were hiding something. Will all go well for you? Will they find out who you really are? Your secret? Would they accept you if they found out? Oh, and your secret? You're the older sister half sister to Rin and Yukio Okumura. The parent the three of you share? Your biological father, Satan himself

Y/n comes back from a mission she had two years ago and meets two new additions to the team. One of them seems cold and distant, but not for long.

When Bucky Barnes was 'K.I.A', he left a daughter behind. A beautiful 16 year old girl. Irina was 5'9, tan skin, eyes as blue as the evening sky, and hair golden like a wheat field. However, the HYDRA agents that survived, kidnapped her. They tortured her, and turned her into: The Arctic Assassin

"Her name is Hela," he replied, watching the infant lose interest in the shield and move onto something else. Hela looked up at the mention of her name and the same grin came across her face. The smile reminded the Avengers of Loki, it was clearly obvious. The child seemed more innocent, but she was clearly his daughter. It didn't take a genius to know what they were about to do. The Avengers were about to have their hands full. Loki's only daughter was taken from him when she was just a baby. Her father was a criminal and unfit to care for her, and her mother was dead, so Odin ordered Hela to be sent to Midgard. Thor automatically calls up S.H.I.E.L.D. and soon Hela is being sent there to be raised by the Avengers. How will the young girl turn out being raised by superheroes, and more importantly, how will Earth's Mightiest Heroes fair against Loki's daughter?