Moonbyul's POV

"Big bro," I called Min-seok before we could enter the penthouse
"What is it?" he is still upset about that message
"Can we have a talk for a moment?" I walked first to the seashore and looked back if he is following me. He is there quietly following me while looking at the ground.
I stop walking after we got a little far away from the penthouse. 

"What do you want to talk about?" he asked
"About that message." I paused "Did we do something wrong to Minhyuk? I keep thinking about it but..."
"I don't know too." he kicked the sand "And it makes me so upset about that. The three of us. I thought we only have happy memories but, I was wrong"

We went back to the penthouse after that. I sat beside and let her rest on my shoulder. She looks really tired. I look at the watch, it's already 9 p.m. 
Hwasa and Wheein are sleeping in their own rooms. Big bro and Eric oppa are still talking in the kitchen. It looks like it won't be finished soon so I decided to go to our room. I lift Yong in a bridal style then went upstairs. I gently lay her down and cover her the blanket. After that, I lie next to her making sure that she won't be cold.
"Good night Yong" I whispered

*CRASH*

I almost jumped out from the bed after hearing some crash. It made Yong wake up too and scared.
It's still dark outside. I turn on the lampshade and look at the watch. It's 2 a.m. in the morning.

"Byul what was that?" Yong asked
I looked around the room, looking where it came from. Then I saw the broken window. 
"I will take a look don't move there," I said to Yong
I slip on my slippers and slowly walked to the broken window. I saw a rock lying with a string. I think it's from the outside. I took a peek outside but no one's there. I picked up the rock. The string has a rolled white paper attached to it. I unrolled it and read:

'Meet me at the cottage 40'

It doesn't have any name. But I believe it's from Minhyuk.
I hurriedly went downstairs to wake up Min-seok.

"YAH"
"WHAT?" he asked under his blanket
"Minhyuk"
When he heard his name he hurriedly got up from his bed.
"What about him?" he asked again
"This" I gave him the message and I told him that it was thrown from my window.
"What's happening here?" Hyejin woke up