~2 weeks passed~

"When are we going to find this girl? She's been talked everyday by everyone in this school, no one can find who this girl is specifically." Hoya said 

"I don't know but I've heard that the obsessive students here are going to make every girl sing just to find the unknown girl and look, they are doing it now to other girls. They even recorded the unknown voice to find out if the voice matches the each one of the girls but sadly, none of them are the unknown voice." Kai said

Woohyun, Chanho, and Jaehyun looked at each other worriedly. They thought what would happen if everyone found out The Unknown Voice was their sister. What will happen in the future?

It was a good thing that Hwan Jae and Jia wasn't there to hear the boys conversation but the only bad thing was, the girls didn't know that everyone in the school has been going around to look for this Unknown Girl.

"Hyung! What should we do." Chanho whispered nudging Woohyun and Jaehyun

"We have two find those two girls quick, we can't let our sister get involved in this. We can't let them find out who "The Unknown Girl" is especially when she's our sister. We have to protect her with all our might. Let's go now." Jaehyun whispered and ran to find the girls 

Soon the three boys ran away from Exo and Infinite to find the girls, the boys looked back at the three running guys and found it suspicious of why they ran again like last time.

"Hey, don't you guys find it suspicious whenever we talk about The Unknown Voice and those three would always run away leaving us dumbfounded." Suho said confusedly 

"Do you guys perhaps think that those three are hiding something from the rest of us? I'm thinking that they know who The Unknown Voice is. They must know her that's why they are protecting her from being revealed." Dongwoo said 

"I'm getting suspicious of them, I really think they are hiding The Unknown Voice from us." Kris said scratching is head 

"We have to make them tell us who she is, I want to know who she is." Chanyeol said immediately 

The boys looked at Chanyeol confusedly, usually he wouldn't care about anything but why now? Is he suddenly changing? 

"It's because he has fallen in love with the voice, that's why he wants to know immediately who she is." Baekhyun and Kyungsoo whispered to the lost boys 

"Ohhhhhhh." The boys nodded while grinning at Chanyeol who is finally grown up to fall in love with someone

"She must really be special to make our Cold-Hearted Chanyeol to fall in love." Sungyeol said patting Chanyeol's shoulder 

________

While Jia and Hwan Jae was walking outside the buildings, a group of blob surrounded them and demanded