Idol group SUPER GIRLS member Mirei Tanaka recently held a release event in Tokyo to debut her first photo book. Tanaka, who is said to be at the “sexiest of her life” in the photo book, shared her impressions of her former co-star Erika Sawajiri. “I was shocked, and thought “She really has a sexy appearance.”

The two women co-starred together on the Fuji TV spring drama First Class in April of this year which recently wrapped up on a high note, scoring over 10% ratings.

Tanaka’s first photobook ‘Mirei’ went on sale on July 22nd. Meanwhile, Sawajiri has successfully finished filming for her upcoming movie Shinjuku Swan, due in theaters early next year.