Hi I asked a similar question but didn't really explain that well and I am still confused.
The thing is I want to know about repenting for kufr if somebody's right is involved.

For example what if they had the intention to mock islam by stealing on purpose and are doing it intending to mock its ruling.
Would they have to repent for stealing and their kufr, return the item and say the shahadah to become muslim again as their mocking involved stealing so they have to repent for both, or
to become muslim can they just repent for their kufr and say the shahadah without returning the item?

I mean what if the right was something you can't return or its somebody you hurt and they don't forgive you.
I'm really worried and this issue is really stressing me out.