皇帝と怪物 Emperor and Monster (Koutei to Kaibutsu)

Plot

"I am the first emperor, Utosa" In the basement of the palace where Tao lived, there was a mausoleum that was protected by heavy metal doors. Where it was rumored that a terrible monster slept. Tao, who lived as a puppet of chancellors, could not have power of the country, and by a macabre plan of his minister, his friend is executed Lost of himself, Tao enters the mausoleum and sees a great man with white hair.