The girls called Spirits appear from the Neighboring World, which is different from our world, and they bring disaster to the Earth. Some are naïve, some seek for salvation, and some continue to torture their hearts to achieve their goals... The last one being Kurumi Tokisaki herself.

One of the Kurumi clones was brutally killed by the Original for wanting to open her heart and to fall in love. Kurumi believes she doesn't deserve that kind of happiness. The clone she killed fall to the ocean of darkness. Yet, she saw a ray of light when she opened her eyes. She is in a completely different world.

Kurumi: "I was already dead once... Dying and falling here - into this world... Where am I? I am sure I was killed by the Original."

The beautiful girl is surprised seeing the beautiful world in front of her instead of the pitch black darkness.

Kurumi: "It doesn't matter. I will find a way to return back to the real world."

Suddenly she sees a boy in front of her. She is surprised to find someone here.