It's been days since Krystal went on a break with her unnie Jessica on Japan, but she was still having a Nippon hangover. 

And for good reason. She hasn't talked to Amber since she left for Japan, their quarrel stemming from her jealousy over the tomboy's posts with Ellin.

"I thought I already told you to stop posting pictures with... that girl!" Krystal couldn't even utter her name, her rage just near the boiling point that afternoon on Amber's place.

"I thought Princess doesn't mind!"

"Don't you dare twist my words against me!" She didn't even dare to look back and left. Knowing she'll be gone for a few days with her unnie, Krystal made sure Amber will regret having angered her.

The Japan trip sure did wonders for her, forgetting her rage and just enjoying quality time with Jessica. But as soon as she returned to Seoul, her longing for Amber came rushing back.

To keep her mind off things, she opened her Instagram, but skipped her timeline whenever Amber's updates turned up. She really didn't know what to feel.

"Let's post a selca to spice things up, then," she thought, and typed the caption half-wishing the user she had really wanted to answer would indeed reply.

"What are you doing"

And within minutes, Krystal's heart started beating fast, as she saw the notification she was waiting for.

"ajol_llama liked your photo."

She held her breath as another notification had her phone buzzing (and her head spinning).

"ajol_llama left a comment on your photo: Thinking of you"

It was just too much to bear for Krystal. She couldn't deny it anymore. She missed Amber. She wanted Amber. Badly.

Krystal opened her KakaoTalk app and looked up her last thread with Amber. She typed furiously on her phone like there was no tomorrow.

"You. My place. My bed. Now."

And then, a chat bubble.

"Open the door. I'm outside."