The sister didnt know tho.
She knew enough.
but she was a child
So was the mc
Yeah she couldn’t do anything but the mc was also a child.
All of this happened from childhood to now and not one time even as she got older did she think to say anything to the mc. At some point she became aware of what was happening in her home. She knew about all of it. She has eyes and ears.
mmmm yeah no. you've seen this for years and chose to ignore it and when finally it came to bit your ass you are apologetic. The FL is better than me I would not forgive her so easily