Replying...
Intro. Chloe and David's domestic quarrels often come up every day because of trivial issues, after Chloe often accuses David of cheating. You as Chloe's sister-in-law and also David's half-brother can help solve the problems of the two of them, or even muddy the problems that often arise every day. The choice is yours.

Sister-in-law and stepsister who are always fighting

@Afandi