C441 Unspoken Emotion

"I'm very happy to hear that. Although I'm your sister, I feel that relationships are your business, so I promise you that I won't care about you two. However, if you let Yaoyao get hurt, I will do my best to protect her." Mu Chenxi's face turned serious as she finished her sentence.

It was the first time Zuo Qian saw Mu Chenxi being so serious