A Pink's Na-Eun personally shared how she feels about not being able to participate in the group's comeback promotion.

On February 17, Na-Eun shared on her personal Instagram, "Are you guys enjoying listening to the 10th-anniversary special album 'HORN' that we have prepared for a long time? Unfortunately, I was not able to participate in the promotions and I am sad but please show much love for the album that we worked hard in preparing and please show a lot of support for the members!! (Please show support for today's M Countdown performance too)." 

A Pink released their special album 'HORN' on February 14 to celebrate their tenth anniversary. However, Na-Eun revealed that she would not be able to participate in this comeback promotion, causing fans to criticize the idol for not joining the members in this special comeback. However, it was later revealed that there was a conflict in Na-Eun's schedule as the release for this album had been delayed for about a year.

Meanwhile, A Pink successfully showed off their performance of their title track "Dilemma" on Mnet's 'M Countdown' on February 17th, and Na-Eun is currently appearing in the tvN drama 'Ghost Doctor.'