오빠는

as for my older brother

→ 오빠
phrase Uncommon #8,050
as for my older brother 는 marks 오빠 as the topic. 오빠 usually means an older brother when said by a woman, and can also be used by a woman to address an older male she is close to.
KO: 오빠는 지금 집에 있어요.
EN: My older brother is home now.

오빠는 왜 왔어?

Why did you come?

— 당갈 (2016)

오빠는?

What about you, brother?

— 아무도 모른다 (2004)

오빠는 그거 못 하지?

You can't do that, can you?

— Kill Boksoon (2023)

그치, 오빠는 주방에 잘 있지

Right, you’re doing fine in the kitchen, oppa.

— 버닝 (2018)

오빠는 글쎄

Well, as for Oppa...

— 이중 배상 (1944)

아빠가 오빠는 태우지 말랬어

Dad said not to give my older brother a ride.

— 반지의 제왕: 두 개의 탑 (2002)

근데 오빠는 이 유서 밖에 쓸 수가 없었죠

But this was the only kind of will you could write, wasn’t it?

— 세 얼간이 (2009)

내 오빠는 교수 야.

My older brother is a professor.

오빠는 어딘데?

Where are you?

— Pandora (2016)