Singing At Night summary:

Xin Ran is a popular female star who debuted in the center position in an annual competition. She is really strong, vain and loves competition. In reality, however, she is kindhearted, a little lonely, and does not know how to love others! A mysterious vampire's appearance changed her worldview. Subsequently, she was made into a blood servant. She was unable to resist the manipulation and humbly begged for it. She embarrassed herself in front of the media and was oppressed by a daddy-like, overbearing CEO? "Among the creatures of the darkness, don't you know that this eldest sister is the real Queen?!"