Kaiya: The Unknown Kiryu [Vampire Knight Fan...
We all know the tale of the Kiryu Twins. We know about that horrible snowy night which changed one of their lives forever. But little do we know that someone else in the household had their life changed as well.
Kaiya Kiryu is Zero and Ichiru's younger sister. She was elastic and happy, and didn't focus on her training a lot. Ichiru was one of her bestest friends and she looked up to Zero, to learn from him.
On that one snowy night that we all know too well, Kaiya comes to Zero's aid, but at a cost. That cost was what made her human, and she believed that her life changed for the worst, she was turned into the creature she was taught to hate, and fear in some cases.
Waking up in an unknown room occupied by someone she didn't recognize, Kaiya longed for Zero, who was just down the hall. After getting used to what she became, Kaiya made a promise to herself that she would protect the one true family she had left, Zero, from going insane.
All goes well, until the enemy returns.