(18)
You,Son Hyewon, are attending in one of the richest middle/high school from Seoul,Shinhwa school. Yes, of course it's because of your older brother, Son Dongwoon, the maknae from B2ST, and your father's popularity, as being a Professor. At school, you're ranked in the last place in school..for your marks.. But even though, it makes you popular! Plus, you're a real beauty so your popularity don't really lose to Teen Top or either A pink! :) Your character? Well, you're an active one, cheerful one, don't really have manners when you're with friends, but when you're in public.. You're someone REALLY polite and stuffs! xD You maybe just had a delinquent character for.. one.. few years.. due to your bestfriend guy.. L..But you stopped being a delinquent, since.. it was no fun to you, and L was worried about you.

(18)
Lee Byung Hun, son of the C.E.O from KIA, the car brand, is attending the same school as you. No need to ask, KIA, the world-wide car brand, who doesn't know them? So obviously, he will be there.  He is being called L.joe by everyone with an unknown reason. L.joe oftenly skip classes, he never listen in class, but even though, he is ranked 1st in exams. He even has more rights than the director of Shinhwa! He is very popular among the students, so he doesn't really know how to express himself, so it makes him have a badass character.. xD
 

(19)
Kim Myung Soo, the ultimate playboy of Shinhwa High, your best friend since you were born, he is your neighbour. He has this nickname 'L' that everyone calls, but no one knew that you were the one to gave him this name, the reason why you called him L, was because he's the one who teached you this letter.. xDDD Anyway, he is an orphant right now, his parents died last year, in a car accident.. Things didn't change much tho' his parents were gone, he continued being his delinquent, but this guy.. still have better marks than you.. Another smart brain one.. His dad was working under the KIA brand, so he is a childhood bestfriend of L.joe.. They always seem to fight, but this is actually how they are bestfriends! :)
 

(18)
Lee Chan Hee, son of Shinhwa's director, is a childhood friend of L.joe. He is being called Chunji by all his friends. He has good grades, and is being qualified as one of the best students in school.  He is calm and smart in school at class, but outside of class, he is cute and active. He is a childhood friend of yours too since your parents knows each other. 
(15)
Oh Ha Young, daughter of the C.E.O from Hyundai car brands. Because she had a crush for L.joe since small, that's why, she always attempt to see L.joe after school. She is the perfect example for rich heirs. She have good grades in all subjects! Sometimes, she gets a little bit too sensitive over L.joe, so that's why she look y, but in reality, she is someone really nice and caring! 

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Shinhwa school: Shihwa is a school, but it's considered as a town too.. Because, Shinhwa has their own commercial district, so you can actually live there without even going out of school! Shinhwa is an Elementary, Middle, High school, University combined together. (ed up, yeah I know 3)

Teen Top : A music band in Shinhwa, formed by Bang MinSoo, son of a C.E.O from a famous company. Even though Daniel is the one who formed it, L.joe is being the leader of them due to his richness. There's 5 members in Teen Top; Ahn Daniel(Niel), Yoo Chang Hyun(Ricky), Lee Byung Hun (L.joe), Lee Chan Hee(Chunji), Bang MinSoo (C.A.P) and Choi Jong Hyun(Changjo). They 5 are also the most richest boys in school. 

A pink: Another music band in Shinhwa, formed by Chorong, but Hayoung being the leader while being the maknae. Same as Teen Top, they are the most rich girl students in Shinhwa. There's 7 members unlike Teen Top 6; Park Cho Rong, Jung Eun Ji, Kim Nam Joo, Son Na Eun, Oh Ha Young, Hong Yoo Kyung and Yoon Bo Mi. 

Infinite: Everyone students know about them, the ONLY gang in Shinhwa, but none teachers knew about this.. They totally hid it well with all their backgrounds.Anyway, they're composed of ; Kim Sung Gyu; the leader, Jang Dong Woo, Nam Woo Hyun, Lee Ho Won, Lee Sung Yeol, Kim Myung Soo and Lee Sung Jong.