Actually, there are two ways of speaking about family members in Japan.
my family members, family members of another one.
So, in Japanese, my elder sister is called "ane/අනේ /姉"
elder sister of someone is called "oneesan/ඔනේසන් /お姉さん"
one more example, my mother is "haha" and someone else`s mother is "okaasan".

1.5H 😱.. so desuka? (is that so?).. yoku dekimshita..(you have done it well).👏
Arigatogozaimasu.(Thank you very much)😊😊🙇