Kristine Leung Chiu Loong (known as Krix), the boss of the infamous gang "The White Dragon" in China, came to Japan after receiving a mysterious letter of her missing brother and a picture of a logo. She was informed that a secret group named "Scalet Eye" was behind it. Now she had to go to Seika Danshi Gakko in search for the group.

At school, all you need to go through are lessons and extra-curricular activities, but when she got there, her life wasn't simple at all. Under the condition given by the principal, she was able to stay when she gathered all 5 boys of Class 3X together. Looks simply? Only if those boys aren't the most TROUBLESOME of whole school and she's NOT in a ALL-BOYS SCHOOL...

With love, friendship and danger before her, will she able to overcome them and find her lost brother? What secrets await her to be reveal?

Krix Leung: "YA DUDES! SHUT UP AND FIGHT LIKE A REAL MAN"