Chapter 07   Krystal's POV   Amber looked gloomy when she came out from the treatment room. I'm worried about her though, did something bad happen to her? My mind is full of thoughts until Minhyuk oppa called me.   “Soojung-ah!” I immediately woke up from my thoughts and turned my head to him. I raised my eyebrows and he sighed.   “You've been dozing off since just now. Are you okay?” he asked in a worried tone. I just nodded and flashed a small smile to him.      We waited for a few minutes until the nurse called oppa's name. I followed him into the treatment room. Then we greeted the doctor when we saw him.     “So, Minhyuk. What's your problem here?” Minhyuk oppa explained to the doctor while I'm sitting beside him while thinking about Amber. Should I call or text him?   “Your sick is caused by the heat. So I advice you to drink a lot of water and take a comfort rest sometimes. Don't overwork yourself. And you're currently healthy. Nothing's wrong with your body. Just remember my advice. Arasso?” the doctor said. Minhyuk oppa nodded and smiled at me. I just nodded at him.     We bowed to the doctor before going out from the treatment room.    As we stepped out from the clinic, me and oppa intertwined our hands while walking towards his car.     “I want to go home.” I said to him when we're sitting inside the car.   “What about having a lunch with me before going?” I chose to accept his offer. He's my boyfriend anyways, I need to spend more time with him.     While Minhyuk oppa is driving, my heart keeps on beating. I wonder what happen to Amber. I quickly shook off my thoughts and mentally scolded myself.    “It's just a little expression of his. I don't have to worry much.” I thought.   But I still can't let go the curious feelings. I took my phone out and texted him.     How are you doing? Are you okay?   —Krystal     I sent the text to him. I'm waiting for the reply right now. After five minutes, there's no reply yet. I pouted sadly. I noticed that Minhyuk oppa is glanced at me.    Suddenly, I heard my phone beeped, I unlocked it and my expression immediately brightens up. Amber replied to me. I quickly open the message.     I'm okay. Why are you asking all of a sudden? ^^   —Amber     I sighed in relief when I saw his reply. Why do I keep on worrying though? Whil