Sulli and Krystal had been friends since school, they were always together in everything, doing homework together, talking on the phone every day, going for a walk together, coming together to have fun, and even spent weekends together, were inseparable friends but had never been called 'best friend'; I think they knew very well what the reason was, well knew that the deal between them was more than special, it was more that just a friendship, it was something stronger than that, it was something that the people call 'love'. 

But they are now separated by your jobs, they have not seen in several years, but soon Sulli will receive a special visit ... a visit from the person who has been waiting to see for a long time ... Is it worth waiting so long? ...