Han Ga-in and Kim Dong-jun play siblings in 'sinbyeong4' as behind-the-scenes video hits 1 million views

Actors Han Ga-in and Kim Dong-jun are set to play siblings in the drama 'sinbyeong4'. Behind-the-scenes footage released on the YouTube channel 'Jayu Buin Han Ga-in' surpassed 1 million views just 4.7 days after its debut.

As of September 22, 2026, the video has recorded 1,065,858 views. This represents an average daily increase of approximately 226,778 views since its release on September 17, 2026. According to the video description, the content provides a behind-the-scenes look at the sibling chemistry between Han and Kim.

Han Ga-in and Kim Dong-jun reunite as siblings in 'sinbyeong4' as behind-the-scenes video goes viral

Regarding her role alongside Kim, Han stated, "It's finally out in the world," adding, "No matter how much I look, we really do look incredibly alike." Han is set to appear in episodes 6 and 7 of 'sinbyeong4' as Kim's older sister.

The released video captures moments from the filming set, including Han performing scenes such as a military visitation. Through the dialogue and subtitles, the cast shares the atmosphere of the set and notes that they maintain a close relationship with Kim in their daily lives.

"It really feels like the military"... Filming anecdotes and production environment

The behind-the-scenes footage also offers a glimpse into the drama's production environment. Discussing the set, the cast noted the lack of air conditioning, remarking, "It must be so hot in the summer."

They also mentioned that a nearby resort provides convenient accommodation after filming. The cast also commented on the production quality, with one noting, "I only just realized there were reflectors," highlighting the attention to lighting. Additionally, the video captured a conversation regarding the male-centric filming environment, with the cast noting, "Women have a lot to worry about, such as makeup time or changing costumes, but men seem to have it easy since they don't have those concerns."