The Wei family has a son and a daughter.
The older brother, Wei Su, is good at fighting, street racing, gaming, and pretty much everything else. In the eyes of his parents, teachers, and relatives, he's the textbook rebellious teenager.
The younger sister, Wei Xing, excels at studying, exams, and competitions. In the eyes of her parents, teachers, and relatives, she's the textbook good student and well-behaved girl.
All Wei Su's close friends know that he absolutely can't stand the sight of his little sister wearing that constantly smiling, sweet and obedient face.
Wei Su: "...My sister? Tch. Whoever wants her can have her."
All Wei Xing's close friends also know what the model student everyone sees in public is really like in private: she can curse someone without using a single swear word, and make her insults perfectly logical; she only fights people who deserve it, but still beats them until they cry for their mothers; and she's so good on a skateboard that she's practically the top dog in the East District.
Wei Xing: "...My brother? Tch. He's too weak."
Then Wei Su stumbles across his little sister's true nature...
Wei Xing: "Wei Su, meet my boyfriend."
Wei Su: "...Heh, you think you're good enough to be my sister's boyfriend?"
[Main focus: the siblings' relationship]
[They dislike each other at first, then the older brother dotes on and protects his little sister]
[Her love interest is not her brother]
[Romance between the respective couples is only a small part of the story]
Theme: The responsibility and support siblings share
