A Pink set aside their usual bright and cute image for their 4th mini album comeback this time.

A group concept photo has been released through their official Facebook account. In the photo, the members are displaying expressionless faces and pale-looking dresses. They have their hair up for a bun while holding books. It also suggest a retro concept.

According to their agency, A Pink has finished filming their MV and currently on the final touches for their comeback which is scheduled on March 31. Are you anticipating their comeback?