Characters:Kim Jieun:Jellywool universitys most hateful nerd but the nerd thing was only her camuflage,she actually the youngest member of “Seoul most scary gangster” just like her brother,Kim Sungkyu―infinites leader― but she isnt part of her brother is gang.Her gang―stage name is J―read as ji.Lee Hongbin:Another best fighter from another gang,but his group was infinites bestfriend―named vixx― and had huge crush on Jieun but he scared for the dear life he would break the friendship if he confess to her.Goes to Jellywool univ with Jieun Yejin Ravi Sungjong Hyuk.Kim Yejin (Jieuns bestfriend):Jieuns very bestfriend yet Jieun considering her(Yejin) as her long lost twin because they had same surname and their oppa were in the same group―gangster. Just same as Jieun; she is part of “Seoul most scary gangster” because her brother was Kim Myungsoo―known as L― is infinites best fighter.Her gang―stage name is YJ―read as wayjiCha Hakyeon:Vixxs leader―N also known as Yejins biggest crush but no one knows except her twin―Jieun yet he is so clueless about something called love since he was known as the second fearless person after Sungkyu. He consider Sungkyu as his hyung.Kim Sungkyu:Infinites leader,most fearless person but so nice to his loved ones. Kim Jieuns older brother,loves her and being so strict with whom his sister will befriend.Kim Myungsoo:Infinites best fighter also Kim Yejins older brother. Just same as sungkyu; he loves his sister so much, sometimes become so strict about who will be her friends.Infinite:The Seoul most scary gang also Sungkyu and Myungsoo is gang,considering members:Sungkyu Dongwoo Woohyun Hoya Seongyeol Myungsoo Sungjong.Vixx:Another Seoul most scary gang,infinites bestfriend and right hand. Considering member: Hakyeon―N Taekwoon―Leo Jaehwan―Ken Wonshik―Ravi Hongbin Sanghyuk―Hyuk.Other chara:Bang Minah,Queenka group Girls Days leader.Im Nana,Queenka group After Schools leader.