Naruto: I, Uchiha Shisui, Put an End to the Disaster

After Sui's death, he came to the world of Naruto and found that he was actually his favorite character during his lifetime - Uchiha Shisui! Unlock Shadow System [Prestige points can be exchanged for everything] No? Want me to gain recognition from others in this war-torn world? However, now that it's here, of course the ending must be changed!