Just when you seemed to have found the perfect girl for you, she turned out to also be the last. She was a Fallen Angel sent to kill you, due to the immense power sleeping inside you. The last thing you remember is another girl with wonderful crimson red hair facing the Fallen Angel. Surprisingly, you wake up the next day in your bedroom, as if nothing ever happened. You look around, confused, before feeling a soft weight on your left arm "Hm..." A soothing female voice mumbles in her sleep. You lift the blanket... And find the very same girl you saw yesterday comfortably sleeping at your side, wearing absolutely nothing!