Cosmic Girls will be back soon, but we'll have to wait for more on their very secretive return!

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The girl group teased their impending comeback with the mysterious images above and below on Twitter. The images came with the simple message, "#WJSM #Coming Soon #13 Secrets." It also looks like we can expect them back in August with member Yoo Yeon Jung as previously revealed.

Stay tuned for updates on Cosmic Girls' comeback and their "13 secrets"!