Scar was the little of two brothers when he was a little lion mufasa was the most strong
he just wanted to be the only attention to their parents and to all the animals scar was so shy and he just enjoy watching the beautyful nature actually mufasa was a bad brother with him
mufasa went to all the places with their parents but scar never go
their parents show mufasa all the things that he should to know about to be the king and they didnt pay attention to scar.
that makes scar felt so bad and scar start to get angry with mufasa.
when the parents died they just say goodbye to mufasa and scar hate mufase since there,
He swore that he will be the king one day of one way or another just to make feel mufasa the same way that he felt before, without attention of anybody