Yoseob entered the library. BToB assigned him to wander around the library in order to watch for Doojoon and, maybe his disciples. 

Yoseob went around, half-heartedly found some books and sat in front of a PC, fakely researched information. But his eyes and head turned constantly like such a evil-doer. Although he logged in Wikipedia and SNS publicly.

(New message from Bang Yongguk)

"Yongguk?"

Yongguk was Yoseob's childhood friend. They lived in a same neighborhood and studied in the same class. But since Yongguk moved away, the two only kept touch by SNS.

YS: It's long not to see you! How is the music show in your school?

Yoseob knew Yongguk took part in a music competition in his new school as Mr. Band posted several rapping clips on his wall.

YG: The Judge eliminated me in the quarter-final round! :((((

YS: Why? ?-?

YG: There are lots of judges that they changed every round. And unfortunately, one said my voice was too low to hear. And he kicked me out! 

YS: Ow...What a shame!~

YG: Forget it! Getting the quarter-final is great though!

YS: *applause*

YG: By the way, there is a contestant who was really impressive.

YS: *curious*

YG: Her name is Son Naeun. She's just moved here since the bignning of the year but she gained popularity extremely fast!

YS: *dumfounded* *poker face*

YG: What happened to you?

YS: Oh oh keep on

Y