C16 A secret discovered by accident

I am the only son in the family, and it is certain that I will be able to pass on my legacy. Moreover, with a glance, I can tell that my sister-in-law is a good field.

Hearing this, the sister-in-law was immediately angered. She glared fiercely at me, but what was different from normal was that she seemed to be welcoming.

At this moment, I couldn't hold it in any longer. Lowering my head