A girl with a weird job, A serious girl with a tough job. Can they be friends or can they even get along? 

As kids Byul had like Yongsun, she waited and waited but when the time comes she has to leave that's when she had courage to tell her what she feels. Years had passed but after the tragic accident that befalls on Byul this made their lives collide again. The world gave them a second chance, would they move on or chase the past? 

Byul had a hard time overcoming her first love, the one she build her future with. Moving on, she changed everything, but one single message may have turn her life around. Solar had been Byuls friend for awhile after 7 years of no communication suddenly changed. But is Solar the same as what Byul remembered her?