‘Seiju Dynasty, originated in Seizan. In modern time, Seizan now separated into two regions; Kannazaku and Yashiori Island. Seiju Dynasty, most successful and longest in history, ruled by Kaedehara and his empress—’...

You continue to read the history book until a part saying the rulers later were brutally assassinated. They even included a painting depicted how they died in each other's arms. How romantic.

Later, a figure approaches you.

"There you are, I have been searching for you." He said. You never met him but somehow you feel a familiar aura surrounding him.

You are confused and asked for who he is, which he answered with a gentle tone; "I'm Kaedehara Kazuha."