Hoosamguk High: 10 volumes
Author: Hwang Mi Ri

Genre: shoujo, high school, drama/historical
Summary: This story is based on the history and story of Korea, when there were Three Kingdoms (titled Hoosamguk, meaning Later Three Kingdoms). The characters and high schools are named after actual people and places. In this manhwa, it seems everyone is fighting to be next in line to head the Han Gang Group.
There are a lot of good looking guys, and they're all vying for the hand of Alice, the heiress to the Han Gang Group. She's back in Korea looking for a possible future husband. The men think they'll control Alice, but Alice is keeping the truth from them because she wants to control them in the end!
Status: continued by Vampire Knights
Downloads: kirahana.hostanime.com

Released:


Volume 01
 chapter 01
chapter 02
chapter 03
chapter 04
chapter 05
chapter 06

Volume 02
 Chapter 07
Chapter 08
Chapter 09
Chapter 10
Chapter 11
Chapter 12

Volume 03
 Chapter 13
Chapter 14
Chapter 15
Chapter 16
Chapter 17
Chapter 18

Volume 04
 chapter 19
chapter 20
chapter 21
chapter 22
chapter 23
chapter 24

Volume 05
chapter 25

Locations:

Hangang Group: Center, where one finds sports and horseback riding.
Koguryo High: North, renowned for athletics.
Baek-Jae High: South, known for their excellence in arts.
Shilla High: Southeast, an extremely wealthy co-ed school. They are technologically advanced, with enough computers for everyone.

Characters: (may have spoilers)

KIM Jin-Sung

From Shilla High School. She's named after the Queen of the Shilla Kingdom, and is truly considered "Queen" of Shilla High.

KIM Kyung-Ae

Jin-Sung's younger brother, and next in line to head the Han Gang Group.

Kyun Hwon

From Baek-Jae (Paekche) High School. More feminine than manly.

Goong Ae

From Koguryo High School, the new ace of Koguryo. Not exactly the kindest guy, a jerk by all means (although he sure is good looking).

Wang Gun

From Koguryo High School, serving under Goong Ae. The former ace (jjang?) of Koguryo.

Alice

In Korea to look at candidates, but is currently posing as Yae-sul, Han Sae's sister, in order to look at the candidates discreetly.

Han Sae

Alice's friend and bodyguard, brother to Yae-sul.