"Be the same in every respect!"

Kazuya comes from a humble rural village. One day, him is sent to a place of learning at the Imperial Court!
Everything about him, from his language to him behavior, is unknown in this bright world,
Will him be able to protect his master Harunomiya, who is considered the next "emperor"?

The story of a shadow warrior's struggle to protect the prince in a court full of intrigue!