“The Return of Superman” and “SKY Castle” stars have met!

On February 10, Si An’s mother Lee Su Jin uploaded several photos of him with actors from the hit drama “SKY Castle.”

With a serious facial expression, Si An is seen posing with Jo Byeong Gyu, Kim Dong Hee, Kim Hye Yoon, Song Gun Hee, and Kim Bo Ra.

Lee Su Jin wrote through the caption, “A coincidental meeting with very famous people at Incheon Airport,” adding that the airport was in a frenzy due to the appearance of the actors.

The “SKY Castle” stars are on their way to Phuket for a reward vacation, while Si An is on his way to Los Angeles.