Sana sit beside Momo who was busy watching Kdrama. Momo turn her gaze to Sana. 

"Where did you go?"

Sana grin. "I go out with Jeongyeon"

"Date huh?"Momo smirk. 

Sana blush. "N-no."

"Eyy."

"Oh yea."Sana suddenly remembered something. She stand up and go to her room. 

Momo look at Sana, she focus back to the drama that she watch earlier. 

Sana go out from her room, she bring a letter with her. "Jeongyeon asked me to give this letter for you."Sana handed the letter to Momo. 

Momo furrowed her eyebrows. She take that letter and open it. 

Sana pat Momo's shoulder. "You read it first, I will go to my room."She go back to her room. 

Everyday when I woke up, I always thought that I'll meet you. It's funny when I forgot we are now far away from each other. But I'm telling you, I always heard your voice calling my name. It is like a music to my ears. At night I always crying because I miss you so much. It's true what Jeongyeon unnie said, I will never be happy after I moved here. Especially when I choose to left you. I'm sorry Momoring.. I know that you are still angry at me. I regret it but what can I do now. By the way,Jeongyeon unnie told me that you're now a detective. I'm proud with you. Is that mean I have to call you Detective Hirai?Hahaha. I'll say goodbye for now. We will meet each other in our next life. This is my last words. I love you my pabo Momoring <3

Love Dahyun~

"D-Dahyun-ah.. What do you mean by we will meet each other in our next life?"Momo eyes start to teary. "Sana!!"

Sana rush to Momo. "Wae