Yuno had a little sister named Yuko. Yuko was very dear to Yuno so that Yuno kept Yuko in a cage. Yuno gave her food and a drink everyday. Yuko never knew about the outside world. All she knew was her sister, her parents, the apartment, and her cage. Yuko has seen what Yuno is capable of and because of that doesn't question her, scared she might end up suffering. When she meets Yuki she stays quiet trying not to get close to him. She is scared but still loves and cares for Yuno. It's time to see where she goes in this fanfic. WARNING: this has gore, violence, sexual scenes, and also the happy ending with Yuno will NOT happen. This is a male! Yuno X OC story(special spoiler I guess)