
They blaming the girl being gloomy but she was tortured since young and they didn't do a thing for her really don't understand where they coming

Read Cheerful Countess Sisters!
The MC suffered abused by both of her parents and her grandfather didn't do anything at all. And when she got the whole inheristance she banished her useless lowlife parents. By the way, she smiled at the corpse of her incompetent grandpa :)
She and her younger badass half-sister becomes a powerful pair ;)
Chapter 12 is missing