The Fourth Kazekage Rasa, I Am a Legend in the Ninja World

After a person from another world becomes Rasa, he will have to face the menacing Orochimaru. How will Rasa deal with it? Faced with internal and external troubles in Sunagakure Village, where will Rasa, the fourth generation Kazekage, go? As one of the Five Shadows of the Ninja World, does Rasa want to unify the Ninja World and achieve immortal achievements; or is he going to live alone and be a free-spirited guest?