NCT’s Haechan faced allegations of vaping during a recent livestream. In the broadcast, Haechan briefly exited the frame before returning. Observers noted his breath upon reappearing and Mark’s demeanor, deeming the situation dubious.

Many viewers were startled by Mark’s intense expression, a departure from his usual demeanor. His apparent anger towards Haechan surprised fans accustomed to his gentle nature.

Fans swiftly came to Haechan’s defense, refuting the allegations. One supporter produced a video demonstrating increased contrast to highlight that no smoke was visible in the footage.

• If it was a vape, there would be smoke coming out of his nose. They are both wearing all black, so if I adjust the color, it would be impossible that white smoke would not be visible. You cannot see any smoke. They both looked towards the right at the same time, and Haechan made a move to adjust whatever it was first, and Mark followed. Whether or not they were adjusting something or moving stuff out of the way, this was just a set-up. You can’t even hear him sucking in a vape. This is just trolling using a year-old video.

• What are you yapping on about, OP? How can it be possible for someone to breathe in and out a vape in just a second?

• Do you think he would?

Additional observations surfaced, indicating that the incident occurred in a hotel room where smoking is typically prohibited. Fans delved into the original account, revealing a history of hostility towards Haechan, suggesting ulterior motives behind the video’s posting. Conversely, the clip gained traction on Twitter, amassing over 2.4 million views within two hours, sparking widespread discussion.