Naruto is taken in by Shisui Uchiha. What happens to Naruto? How will his life change?

to everyone else naruto uzumaki appears to be a weak Dead last orphan loser with no parents. however. everybody has their own secrets. and Naruto's secret. is that he's a professional MMA fighter. in the underground he's known as the octogon king by night. but by day. he puts on a fake mask of idiocy and weakness. but what happens when the hokage finds out about this when naruto is cornered by an angry mob and beats EVERYONE including the anbu black ops???. what happens when naruto goes against The Green beast maito gai and hospitalizes him???. will these skills make naruto feel respected???. or will he became the most feared Taijutsu user konoha has ever seen???. let's start the story and find out. I claim no ownership of naruto or anything else related to it. ALL fighting styles portrayed in this story belong to the MMA fighters association.

When Y/n Nikos is at his wits end trying to save his little sister from an illness that no one can comprehend, he makes the greatest sacrifice for her... all for her

Y/n L/n was a boy who's life was terrible but one day When some friends and him go out to relax things change. Now Y/n finds himself living with killers and other unearthly creatures. How will he react to his new life?

You are Y/n the son of Berrus. One day you meet a tyrant. And like your father you could care less of how she runs things. But for what reason?

+Being ignored by his family and being abused by the students in Beacon, (Y/N) decides to escape from all this to another planet called Earth where he knows several people who have forgotten his past and can call someone friend for the first time in his life -Dragon ball is owned by Akira Toriyama -RWBY Is owned by Rooster Teeth