The popular and well-known Kpop princesses a.k.a Girls' Generation, is now going to face their biggest problem yet. A supernatural happening haunts them once their very own leader, Kim Taeyeon, and their beloved prankster, Kwon Yuri, have suddenly transformed into a pair of good-looking males. This mysterious event will cause a whole lot of shenanigans and chaotic adventures in Soshi's life once they try to discover how to surpass this trouble.

A story filled with both comedy and romance. Seven girls struggling to find out a cure to Taeyeon and Yuri's unexplainable transformation. Will they be able to succeed or will their plans fail which would cause the end of their group's career?