Former idol-turned-actress Kang Hyewon went viral for a scene in the U+ Mobile TV K-drama "Friendly Rivalry," based on a hit webtoon. In it, she delivers the series' most shocking line to date.

This GL (Girl Love) drama has been a major talking point in Korea and abroad.
When Hyewon casually mentioned, "So you do jerk off at school?" I do it often, too," netizens were shocked.

Social media was in a tizzy with this unprecedented dialogue, and many netizens wondered how such lines made it into the script.

"That dialogue does not exist in the webtoon!" exclaimed one user of the Korean online community forum, Instiz.

Another added, "Is this 19+?" Others suggested that the study should be their primary concentration. "This is definitively not a school clip," reacted one viewer.

A lot of Korean netizens said that the line was off and added nothing to the plot.

The drama has also made headlines for its romance scenes in addition to Hyewon's controversial line.

Fellow actress Hyeri has been scrutinized for her passionate kiss with another female character, Jung Soo Bin, which has caused a lot of commotion on the internet.

"The kiss scene was pretty hot!" one fan commented, while another wrote, "wow i didn't expect the characters to have that much chemistry."

Meanwhile, the series has retained viewers with its unique mix of comedic and dramatic elements, and fans are still hanging on every word as the story continues to take ridiculous turns.

"I can't wait for next week. This show has more twists than a soap opera!" said a dedicated viewer. Fans are now left wondering how the show will continue to tackle searing issues while maintaining its action-packed tone.