Group A.cian is starting their countdown for a comeback.

A.cian released a teaser of each member starting October 17, officially announcing their comeback.

Their agency ISS Entertainment joined together with Mono Music Korea, and at the same time added two new members with the original members Sang Hyun, Jung Sang, and Jino.

They will make a comeback near the end of October with their mini album, Ouch.

In each teaser, the members each showed a new improved image with charismatic performances and manly looks.

Their title song "Ouch" will have a powerful performance along with a unique concept.

A.cian had a showcase of their mini album on October 21.