being part of the hyuuga clan will ask you to fill out this form:

name:
age:
main branch or lower branch of the hyuuga clan:

ic: if you choose main branch, the you'll have a curse mark that makes you permanently good, and when you turn evil you lose your byakugan skill and 8 trigram 64 palm.
if you choose lower branch, your byakugan is weaker, but you won't have a curse mark

name: Kye Hyuuga
age: 22
main branch or lower branch of the hyuuga clan: (main)