Who Is the Murderer Yandere?

"I love you! Mua!" "! We agreed! We will always be together!" My name is Cheng Miao, a member of the student party! Unlike others, I am the Superstar on campus! This is not bragging! My brother's appearance is top-notch! A heartthrob! I have been having the above dream recently! But it's normal! Who makes me so charming? But now! I found that I seemed to be really in trouble!