One day J.Y.Park has an amazing idea which is...........Doing a Reality TV show making several kpop groups live together for 1 year!!!! What could possibly go wrong?? This story might look normal but it is not. Enjoy!!!!!

Sana, Dahyun, Chaeyoung and Tzuyu are stranded on an island... but they're not alone... Based on DTNA theories from ONCE～