Sister, brother

Prologue

"CRASH!"

An accident caused by two cars. One of them was red in color, while other was in white. In the white car, there were two people including Mr. and Mrs. Mikagami. That accident caused the lost of the three children's parents.

Later in that year, Yuki was caught by a stranger and disappeared when she was only four years old. Mifuyu and Tokiya had lost their parents as well as their sister.

After five years, there was no news about their lost sister and Mifuyu was killed. Tokiya was risen up by Meguri Kyoza, who taught him the techniques of Hyomon Ken.