The main character is He Yo Kang. She is not an ordinary high school girl. As a matter of fact, she is a jjang of her school and her gang is the most powerful one in Seoul (Korea's current capital). But she wants a normal like and a boyfriend. She cannot though. She is hot blooded and cannot control her temper whenever she meets so called "wimps".
And that is not all. Her father is a boss of one of the largest gang. She has a younger brother who is also a jjang of a school. But her father only sees He Yo as his hope. The time is year of 2002. Every youngsters get to chat online once in a while. And He Yo Kang was not an exception. Her nickname on net is "playgirl8".
Actually, she didn't know well about computer. But her sub-jjang, Ji Lee Yun, teaches her so-called necessary things for online chatting such as being girly and all.
Ji Lee Yun is am ambitious girl. She doesn't have a big background like He Yo but she admires He Yo's life. So, she became He Yo's brain. She is loyal and serves He Yo in every way possible so that she also can be powerful.
He Yo begins to find herself a new life from online chatting. She wasn't being hot blooded on net. In fact, she was being quite charming on net. She begins to think online chatting as her only exit to the gang life.
She eventually meets with two guys, cosmos_No2 and denishu and another two guy in later volumes. She never saw the guys' faces but she was sure that they were the ones she needed to find. As the story goes deeper, a rebellion force grows within He Yo's father's gang. And the fire spread to He Yo also.
Anyway, to make it short, in the end, everything was all right except He Yo finally makes a choice to be a normal girl instead of a gangster girl. She decides to give up on power and money and luckily enough she had 4 men who were willing to support her.

From Misty Rain Scans
-Growing up in a strict old-fashioned household, Nanah has always been rebellious and outspoken. She dreams of living life as a normal teenage girl... But now, at the age of 17, she is forced to marry to a complete stranger! Prequel to Mok Yuna's Honeymoon Diary.

Lang Lang is a girl who was adopted by rich parents. She starts attending the school of her brother Ian, who is the idol of his school.

From HMR Scans:
Ever since she was 10 years old Eun Song has been an orphan! Money is the best! If it's for money she would do anything (except for kissing). Stubborn rich guy Jae Gal Won who acts like a gentleman in front of others. But when he sees maid Eun Song he becomes greedy and playful… Is this love?

Being beautiful is never easy, especially if you're an eighteen year old boy like Gene who is constantly mistaken for a girl because of his delicate good looks. Gene is, in fact, anything but delicate. He is the ringleader of a group of tough kids in an all boy's school, and he's quick to beat the living daylights out of anyone who even hints that he resembles a girl.

If that wasn't hard enough for a regular teenage guy to cope with, his life is about to take a shocking turn for the worse. When Gene stumbles upon strange happenings in the forest, he gets sucked into a world of vampire intrigue and sinister romance that he never knew existed. And he learns that there are worse things than being turned into a vampire: being turned into a girl?!

Sun Jong is a girl who doesn't like to be near others, and wears a mask on her face.Her grandma decides to take in a good looking boy who has the mission to become friends with her. Can she take off her mask? (Source: Mangafox)

"A stabbed and tickling heart!! A heart that only beats for you!"
Even if it's a hurt love I will challenge again for that love!!
A love story that began with a deal. Who is going to be the winner of this deal?
Making a sweet love story of Ji Wan who doesn't believe in love and Hong Joo who is honest and foolish enough to love.
(Source: Rosa Negra).

Eun-soo Cha is the main character of the story. Eun-soo has hated her Mother ever since she was abandoned by her. Raised by her Grandma, she became a wild child that likes to fight. She has even disguised herself so well as a guy that people won't believe her even if she says she's a girl. She can fight well, and is even referred to as hot by girls. One day, however, her Grandma's already bad health worsens, and she promises not to fight anymore. When Eun-soo's grandma dies soon after, she decides to leave Dae-Jeon (where she lives) and goes to Seoul to live with her Mother, despite still hating her, because she has nowhere else to go. There, she runs into one of the best fighters, at her new school, and immediately gets on his bad side. What will happen? Will she break her promise to her grandma? Will love bloom?

Based on the Korean Internet Novel, "????? BOY" by i??i?? (iCookieiLike)

Joeun remembers everything that turned her life upside down. She remembers the man who helped her out at the darkest of times, who abandoned her while calling her cursed. She remembers her prince, who she had her first kiss with at the age of eight. He, too, abandoned her in one day. She remembers the strange black haired man who beat her mother up. Everyone said that she was cursed, and she wants to prove them wrong. Eight years later, Joeun finds a wallet. She is going to turn it in when her friend is caught by a gangster and lots of money is needed to save her. But the wallet owner sees everything, and decides that Joeun is his next target for revenge. But the wallet owner seems to be a cross-gender freak.
(Source: MangaUpdates)

by Rosa Negra:

A father who committed suicide on Yuh’s 16th birthday.
The boy she met during her sorrow; Mu Hyul
Ba-dump Ba-dump; a guy so breathtaking.
A proposal at a sky resort.
“I can do anything for you as long as it makes you smile. I’ll give you everything you want.”
All those to interrupt our love are so dead!

Seobang(1) my ass! Who's your hubby,
And who are you calling my manura(2) ?
Promise between households?
Pu! Who cares about that kind of thing!
Oh goodness, our neighbors,
Just listen to the way he's talking.
I'm telling you to keep the promise
Since it's a vow between two households!
It's not as if I've become your manura
Because I wanted to be!!!
Anakne(3) virtues are;
One: Carefulness of conduct, Two: Carefulness of conduct.
This is the way she was taught to act,
Genuine country maiden Kim Seon-Nyeo.
Because of resistance(?) from Cha Eun-Hyeok who is to become her seobangnim(4),
She gives up on trying to be the perfect wife,
And reveals her true nature
As a hot-blooded fighting art specialist!
Taming Jogang Jicheo(5)?
It's actually taming Jogang Jibu(6)!
(1) Hubby
(2) Wifey
(3) All of women
(4) "-nim" makes it to become a formal way of calling seobang(hubby).
(5) Wife who has shared one's hardships
(6) Husband (literal meaning father) who has shared one's hardships
Source: mangaupdates

(If I can make money, I will do anything)
I can sell (give up on) my love, or risk my life.
You want to use me as a tool to revenge your little brother [or sister]?
Here, I will be used. Buy me.
I am very expensive.
Eun Hyool, you said you will do anything if you get paid?
I will buy every single piece of you.
From now on, you are my slave.
But, I will refuse your heart.
These two are getting used to each other by endlessly running against each other.
Love that formed through quarrels is risky like a flower at the end of a cliff!
(Source: MU)

From Tinte:
Suh Hyun-bin grew up under the cruel hand of street gangsters, but after her little brother dies, Hyun-bin runs away and is taken in by a rich family to be trained to become a bodyguard. However, she must hide that she is female, and pose as a man. And so, for eight years, she grows up as a cold, male, bodyguard. It looks like she'll be this way forever--until a fateful encounter with Lee Yun-ha shakes her very foundations, and leaves her conflicting with herself, as her feelings of love clash against her feelings of duty.

Junhee Lee is an average high school girl. She's pretty dense, you could say, and she's a tough girl willing to beat up anyone who ticks her off in one teensy second! She's the Jjang of her high school, but she didn't even know it. She had beaten the previous Jjang on the first day of school- but let's just say she thought the Jjang was a phony. He was just too weak! Junhee is obsessed with the boy band "OZ", and she's starstruck when she's faced with her favorite member! But her rival-in-love is a pop singer, and they must fight fight fight!
(Source: TarotCafe).

Starting today, I am an elegant lady. ~♥
Jaekyung Lee, referred to as princess by her father, has promised herself to give up fighting and aspires to be the perfect lady. Mastering cooking and sewing, all in order to prepare herself to meet Minwoo, the sunbae of her dreams since middle school. However she oversleeps on her first day starting at SungMoon High, which Minwoo attends, and encounters a group of guys harrassing a girl. What will she do?

Life isn't that great when it's composed of a stubborn sister, single mom, and a dad that left you for someone else? If that's not enough, you meet a dwarf that's part of a famous boy band? Could this get any worse?!
(Source: Within Silence)

The main girl and her unrelated brother had always been together since their parents' unfortunate deaths.
On her brother becoming a policeman of another jurisdiction, they moved into a big house...only if it doesn't have its gloomy and haunted air.
They found a body of a dead young boy, a son of a hotel chain family. The ghost of the boy gives the girl the ability to communicate with ghosts.
Now the main girl's unrest life is turned upside down and more complicated. Not that she is in love with her brother...no, no, no way. Not because of the dead boy's younger brother. Not that her ability to see ghosts seriously gets her into trouble...."UGHhhhhhh, somebody help me!"
(Source: AquamarinePrincess)

From Bamboo Garden
-Mok Yuna's mother is the owner of the family Dojang (martial arts place) and she's strong as ever! Even the strong Yuna's beaten up easily by her merciless mother. After having her older sister Nan-Ah suffer due to an engaged marriage planned by her mother (read the prequel Moknanahui Honeymoon Diary), she's now to marry a Japanese gangster? Ryu Sein, her best friend, will save him oh yes he will- but will he be successful is the true question.