Netizens are talking about how Krystal was the original "It girl" during her idol days.

On April 3rd, a post on a popular online community garnered attention for posting Krystal's "4 Walls" era. Originally titled, "The idol who stopped being active after 22 years old", the post talked about how Krystal stopped promoting as an idol after "4 Walls" when she was 22. 

With more than 500 comments, the post opened up a discussion about how Krystal was the original "It girl" during her idol days. Some of the comments include: "She was so charming when she was an idol. She danced really well and her vocals were good." 

"I miss idol Krystal because she really was legendary."

"Wow, I didn't know she was so young."

"I know she works hard as an actress but I miss her iconic stage presence."

"She was my first idol...I really loved her."

"She was truly multi-talented. She could sing and dance, not to mention her stunning visuals"

"I want to see idol Krystal again"

"She still has so much potential after being so successful at a young age" 

"I still can't believe she was an icon at such a young age. She had her own distinct style which charmed so many people back then."  

Meanwhile, Krystal is currently starring in a rom-com drama 'Crazy Love'.