Well, without more context, it's hard to say precisely. But it might be a story where a father has a secret that has been kept hidden for a long time. Maybe it involves some sort of illegal activity he was involved in, like embezzlement or something worse. And this secret starts to surface and has a 'deadly' impact on the family's relationships or their safety.
I'm not sure specifically what this 'daddy's deadly secret true story' is about as the title is rather general. It could be about a father having a secret that has very serious or even life - threatening consequences, perhaps a family secret related to a crime or a hidden aspect of his past that could endanger the family in some way.
The 'daddy's deadly secret true story' could be about a variety of things. It could be that the daddy has a medical secret, for example, a genetic disorder that he has known about but kept from his family, and this secret becomes deadly when it starts to affect the health of his children in unforeseen ways. Or it could be about a dark secret from his past, like he was involved in a cult or some dangerous group, and this is gradually uncovered, putting his family in a precarious situation.
A practical answer is Chapter 95, because it turns the idea into a concrete scene. The chapter opens with Hearing others praise her daughter, Aunt Lin was smiling so wide she..., adds pressure through And once everything is settled, escaping might become very difficult for..., and ends on Your.
The best chapter pointer here is Chapter 99, "Dear Sister, Save Me!!!". It opens with Seeing the man approach, one of the individuals with a long scar across... and closes on Just as she was considering whether to practice a set of boxing, her phone....
The best chapter pointer here is Chapter 117, "What Jiang Li Can Do, She Can Do Too!". It opens with Fragrant and cloyingly sweet potatoes and corn were out of the pot, and Qi... and closes on Since entering puberty, his mother had exerted strict control over his....
The best chapter pointer here is Chapter 56, "Popular Host L God Actually Supports Jiang Li?!". It opens with Lei Shen originally had no idea about the trending topics on Weibo. and closes on At this moment, Lu Xingchao was still in the dark..
Chapter 91 is the strongest chapter-level answer because it starts from When Jiang Li saw that he had been assigned a harrow, Qi Tianyu felt his... and follows through on Hahaha, Young Master, what the heck are you thinking about eating!" "I'm....
Chapter 62 is the strongest chapter-level answer because it starts from Sitting on the edge of her bed, she pondered for a while before lifting... and follows through on Jiang Li reached in, pulled out a piece of paper, and slightly raised her....
A practical answer is Chapter 111, because it turns the idea into a concrete scene. The chapter opens with The main room's door was pushed open just a crack, and the head of the..., adds pressure through Alright, those who think they're the king can step forward!" As soon as he..., and ends on.
Chapter 76 is the strongest chapter-level answer because it starts from Thinking of this, the aunt repeatedly praised, "Girl, hearing your words... and follows through on Soon, Shu Yan also couldn't hold out any longer, leaning against the tree....
If you want the clearest chapter reference, go to Chapter 71. Early on, Shu Yan curled her lips with a hint of jealousy, "When can it be my turn...; later, the chapter leans on Who in this circle didn't know that Jiang Li had a thing for the....
Chapter 62 is the strongest chapter-level answer because it starts from Sitting on the edge of her bed, she pondered for a while before lifting... and follows through on Jiang Li reached in, pulled out a piece of paper, and slightly raised her....