【明報專訊】Tourists are increasingly looking for unique experiences when travelling abroad. Recently, a South Korean technology company has broken new ground by starting a specialty tour service with good-looking "oppa" for foreign tourists. "Oppa" is a Korean term used by women to refer to an older man. While it can be used to refer to any older male in general, including siblings, it is a term of endearment commonly used to refer to a boyfriend.