I've had this question for a while about obito's rinnegan, he got it from nagato who in turn got it from madara which was originally a sharingan to ms to ems then finally rinnegan right?
I get that nagato couldn't turn off the rinnegan to ems, ms, sharingan or normal eye the same way a non uchiha can't turn off a transplanted sharingan or non hyugans can't turn off a transplanted byakugan.
My question is (finally): how come obito can't/doesn't turn his left eye back to ems, ms, s or just a normal eye, he is an uchiha so what's stopping his from reverting it back?
I get that nagato couldn't turn off the rinnegan to ems, ms, sharingan or normal eye the same way a non uchiha can't turn off a transplanted sharingan or non hyugans can't turn off a transplanted byakugan.
My question is (finally): how come obito can't/doesn't turn his left eye back to ems, ms, s or just a normal eye, he is an uchiha so what's stopping his from reverting it back?