Krystal timidly opened the rehearsal room. She just squeezed in a spare time from her hectic drama filming schedule for their first ever concert. 
They've been practicing hard for the new performances and she can't help but to bumped into someone she doesn't particularly want to see. But she's too worn out to think of her feelings. She is just tired, tired of everything. It actually shows in some of the shooting. Sometimes the director would ask her to retake a lot of bubbly scenes cause her tired face would show. And now the stress has been building up again. 
Krystal immediately went to her members who were stretching up. Amber immediately high-five her, "Hey there princess! Lighten up. You look stressed out." Krystal just gave her lazy smile.
"Soojung-ah~" a voice filled with aegyeo cooed behind her. "Oh~ Sulli-ah~"Krystal cupped Sulli's adorable face. As soon as they made eye contact, they both bursted laughter. "Unnie~" Krystal went to Victoria and Luna, and hugged them both. 
They were having their usual goofing around. But before they could laugh to Victoria's siliness, a group of voice entered the room. It wasn't the usual back-up dancers they were practicing with. In fact, they were the group of boys that their company, SM, is pushing to become the front-runner of the new generation idol.