1. Idol A is the sex toy of a married middle aged actor B
A popular girl group member who only just started earning popularity (albeit late) is found to be having an affair with one of the country's top middle aged actors. Their relationship started at the beginning of A's debut and the newfound fame hasn't gotten to A's head, as she'll go out whenever she is called by B for their sexual relationship. B has a perverted side to him that A fulfills and their relationship is already widely known by insiders of the industry. Everyone is amazed at A for being able to handle such a man.
(The biggest hint is that the girl group earned 'late' popularity recently.)
fuck, who is it?