Girl group Cherry Bullet Chaerin has been cast in the new drama "The First Seventeen."

Chaerin will appear as Cheon So-mang in the web drama "The First Seventeen," which is set to premiere on July 7. Cheon So-mang is a character with a quick and confident personality with beauty influencer in the drama.

"The First Seventeen" is a clean No-MSG pure high-teen drama about the growth process of high school cover song club friends meeting each other and finding their dreams.

Chae-rin, who has shown various charms on the stage as a member of the girl group Cherry Bullet, was praised for her strong presence in the short appearance as Nam Yu-ri in the web drama "Love Revolution," while playing Yoo Ha-ol, a bright and confident character but also suffering inside, showing her potential as an actor. Expectations are high for Chaerin's performance in "The First Seventeen."