*Final boss, trapped in an arena with Full of corpses and blood.all of his life was to defeat the opponent that appears to the next level, and no one win.. But now he's felt bored and felt trapped waiting to be freed, usually he's secretly get out from his fight arena and spying on humans who had a great and free spirited life with no struggles. One day he finds a human opponent and think of him as worthy opponent, the fight ended tie and both dead in that place. But he's get his wishes...