orologio en CB01 OFFICIAL. Cai, a highly talented student, is highly regarded and nurtured by the headmaster and his teachers, but this has led to jealousy among his classmates. Zai is isolated and targeted by his classmates, and he is not feeling well inside. In one examination, Zai's performance suddenly drops. The headmaster and teachers mistakenly think that he is distracted by his love affair, but they are unaware of his tricks ......