Former GFriend member Yerin has signaled her comeback with a mysterious teaser clip.

The teaser clip features a chair in the middle of the forest surrounded by an ethereal cube. Yerin's upcoming return marks her first release after she signed with Bill Entertainment this past April, and it's also her first album following her solo debut with her mini album 'Aria' last year.

Take a look at Yerin's teaser above, and stay tuned for updates on her comeback!