about the visa

Currently i am leaving on okayama japan with my parents. I am currently studying at high school in japan. I want to move to tokyo after graduating from high school and join a university at tokyo. Since i am here on my parents visa, can i move out and live in tokyo? My parents gonna handle my university fees and i am going to handle the rents.

Parents visa: No,you dont have parents visa
So If you really come japan with your parents, then you have family related visa/relative visa

I assume one of your your parents is on a work/employer-sponsored visa, and your other parent and you are here as gdependenth of your parent? (Either that or c your parents might have a status as c permanent resident of Japan)

As far as I know, on gdependenth status, living away from the parents because the child wants to attend a university in another city is allowed.