You Must Not Fall in Love with Your Sister

The younger brother I watched growing up actually kissed me! Zhang Muchen, who has been solo for 30 years, gave her first kiss to Chen Zimo, who is 9 years younger than herself, and actually enjoyed it quite a lot. When she thought that this boy had just graduated from college and was still the best friend of her younger brother Zhang Xunmei, she was so embarrassed that she left the three bedrooms and one living room with her toes. Zhang Muchen watched Chen Zimo grow up and saw the way he looked when he couldn't wipe his nose clean. But now the relationship between the two is unspeakable. A kiss is like pushing dominoes, causing the walls that once seemed impenetrable to collapse one after another. When love breaks through, trouble also follows.