First of all, here's a bit of a spoiler. She's supposedly the daughter of a woman accused of having had an affair with a demon. It's unclear why they tarnished her mother's reputation, as there's no background story about it. It all happened too quickly. Her master's actions are somewhat suspicious. Why did he want to break the blood pact? The story itself has potential, but it feels rushed. There's no information about her father or mother. How did her father end up with two dozen wives? It seems like he's not just creating a large family, but a massive one.
Now, another spoiler. The last part of the story is quite shocking and somewhat cruel. Her master arrived late, leaving her traumatized in that situation. Instead of offering support, he tells her, 'I'm your master, he's just controlling you... something.' She was clearly shocked and traumatized. She's still weak, even though she shares your blood. He could have reassured her with something like, 'It's going to be okay.' She needs more love and support. She's been through so much. The female main character really needs someone to comfort her and help her express her anger and sadness.
Furthermore, even though her father is handsome, his interest in her seems solely based on her survival. They all appear to be flawed characters. The only thing I truly appreciate in this story so far is her servant.
On the part concerning chu tian.
He wanted to break the blood compact so that he can be totally free. He's bound to follow what that compacts equivalents is, like having Yuhua as a disciple the first reason why they're bound together in the first place. As they made another blood compact about Yuhua's other rules like no killing and etc. there's more reason he wants to break the blood compact since he wants to be out of the constraints of one silly girl.(remember they'll both die if one rejects the compact. The blood compact was explained in chap 5 and 7)
He's seems to be made as a self centered self serving character that does not care about other's emotions so asking for emotional support from him is futile. There might be times that it looked like he's doing things out of good will it always ends with him having ulterior motives so I guess it's hopeless to expect that character consoling Yuhua.
He was a assassin in his past life. (No more infor regarding that one.) Suddenly he want to become the world strongest monster even though he is the most weakest E- rank monster. Then something unexpectedly happened, he have a system that helps him grow to become the most strongest monster.
This is good but the story is too fast, no background, i think this is a sequel about something, but make sure to read it as well.