In Korean, boys and girls call their brothers by different names. Only girls are called older men Oba (? ), boys don't call it that. It is also used to address male lovers, indicating ambiguity and intimacy. Novels are generally written as "Oppa", indicating closeness.
Extended data
Ouba comes from Korean TV series (Korean TV series for short). The prototype (o ba) is the honorific of the word "brother" in Korean, which has a sense of intimacy.
Ouba (Korean:? ) is a transliteration word in Korean, which means that girls call their brother Oba to older men.
Ouba is a respectful name in Korean, and it is also a kind of intimate address between young men and women, which is common in Korean dramas.
Baidu Encyclopedia-Ouba (Korean Character Title)