The advertisement itself was a shocker -- as sex has been a near-taboo for idol singers in the country.
But the verbal assault by some online commenters was yet another reminder that female celebrities still are frequently exposed to sexual harassment online.
Within hours of the ad's release, posts saying Yura was telling viewers to engage in sexual intercourse in a specific manner appeared on Ilbe, with one post garnering nearly 600 thumbs-up of approval in less than half a day from being uploaded.