Kaguya's enigmatism and strong character draws people to him like flies to a pie. While he exludes confidence without any effort, he is secretly dependant on his twin sister, Kagaya. He is strong because she is; and he can be strong because she exists. He cannot imagine life without her.

Kaguya has had his twin sister, Kagaya ever since he could remember. They were always together, and came from a nice wealthy family where they had two loving parents. When they were slightly older, their parents died in a plane crash. They were overcome with grief. When it was time to recieve their parents' will, to their shock, there was another name included in the inheritance: Kasumi. For the first time in their lives, they discovered the existance of an elder brother they never knew they had. Still suffering from the loss of their parents, they sought their only other living family member out.

Their first meeting with their long lost elder brother was nothing like they imagined. Kasumi had been living in a hospital even before they had been born. Seeing their sibling lying in that white room with nothing but loneliness in his eyes, they realized they had to make up for all the time they had lost. And although Kasumi was reluctant to have anything to do with them, they pushed on, visiting him every day and trying share with him the love that should have been his.

One day, they arrived at the hospital as usual --- only to find out that Kasumi had left the hospital the day before without leaving so much as a message. They have been tracking him down and have trailed him all the way down here.......

None, except for Kasumi