Xing - a cheerful girl, a cute girl who puts everything on her face, says what she wants and does whatever she wants.
Yue - a quiet girl, opposite to Xing, she keeps everything in her heart and doesn't talk to others (except Xing), she is an icy beauty.
Yang - As you can tell from the name, he is a sunny boy, and he is a pair of enemies with Xing.
Tian is a genius, and in the fight between Xing and Yang, he always plays tricks on the outside. He looks like a nerd (of course he is also very handsome, haha!), But in fact there are a lot of bad things in his belly.