Girl group After School, who have been active in Japan recently resume their activities in the domestic music scene on June 21 with their fifth maxi-single "Flashback."

Just 10 days before their performance, the group revealed a teaser image for the new album on Monday, fueling fans' expectations.

The girl group, who all resemble leggy supermodels, finished their first Japanese live tour on a high note in April. They are set to perform an encore concert at the Tokyo Dome on Sunday.