SEE ALSO: ILLIT win #1 + Performances from April 25th 'M! Countdown'!

Bada tweeted on February 21,�"Our kind Seohyun who successfully wrapped up the musical 'The Moon that Embraces the Sun' a few days ago~ The cute little hand who took care of her unni who is suffering from a cold~^^* I should hug her~~Ahng~."

"A happy dinner I had with the angelic and kind Seohyun yesterday~. This scoundrel is more passionate and stronger than she appears. I miss yesterday. You and I are doing our schedules right now~hehe When I saw this photo, I feel like my fever dropped and coughing stopped hehe."

Seohyun recently wrapped up her musical 'The Moon that Embraces the Sun', while Bada is currently starring in the musical 'Carmen'. Bada and Seohyun have a lot in common as first and second generation idol singers, respectively, as well as their background as SM�Entertainment�artists which might explain why they're so close!