Main characters:

  Ye-Eun as Seo-Yeon                                      Jungkook as himself                         

If there were five words                             "Golden Maknae" of the band BTS.                    

to describe her, it would be                        He has a crush on Seo-Yeon, but always     

awkward, fangirl, BTS, BTS                          plays a game of hard to get. At first,                           

BTS, BTS.                                            tries to make her jealous with her best friend,

                                                                but it didn't work.                                                                                                     

Park Joy as herself                                                                      V as himself 

Member of the band Red Velvet,                                       Another member of the band BTS,

she has a crush on V and                                               along with his best friend Jungkook,

often visits BTS' dorm.                                                   develops feelings for Soo-Bin, Sung-Yeon's BFF, 

Jealous of Soo-Bin since                                                but usually gets rejected.

V likes her. Later on develops feelings

for another member.                    

Yujin as Soo-Bin                                                                                           Suga as himself

Seo-Yeon's best friend and love                                                            member of the band BTS as well,

counselor, fangirl of BTS as well.                                                                 and  he has a crush on Joy.

At first likes Rap Monster, but

falls for V's charms.

Nickname: Bunny        

Sorn as BTS stalker+Blogger (Real Name Ji-Won)                      Lee Hyun Woo as Ry-Ahn

She's not as innocent as she looks.                                        Seo-Yeon's older brother. Flirts with

She watches BTS day by night by                                          every girl he sees, including Seo-Yeon's 

camping out in front of their dorm.                                          best friend, Soo-Bin. Fan of Red Velvet.

Starts rumors about them as well on her                                Has little crush on Soo-Bin, but Ji-Won scares him

blog. Also has major crush on Ry-Ahn,                                       from talking to her.

stalks him as well.

Nickname: Gossip Girl