A man and a woman, aged 30 and 24 years respectively, turned themselves in to officers at Bangkhen Police Station, admitting that they are the individuals who appeared in a video clip shot in a university and are the ones who posted it online via the website pornhub.com.

With wholesome looks and increasingly global fanbases, K-pop has sold its stars as the ultimate squeaky clean pin-ups. But a burgeoning sex scandal in the industry shows how pervasive discrimination and abuse are in South Korean society, observers say.