Well, catnap and dogday have nothing to do with comic directly. But you could imagine a comic where a character takes a catnap on a dogday and funny things happen.
There might not be a direct relationship. A catnap is a short sleep, dogday refers to hot and lazy summer days, and a comic is a form of entertainment. But they could potentially be combined in a creative story or theme.
The connection between catnap, dogday, and comic is rather loose. Maybe in a comic, there could be a scene of a person having a catnap on a hot dogday, but that's just one possible way they could be linked.
A practical answer is Chapter 22, because it turns the idea into a concrete scene. The chapter opens with Hearing this, Su Yinwan looked at Shang Shaojing with a face full of..., adds pressure through Why are you yelling so loudly?, and ends on Jiang Li's righteousness temporarily shut Jiang Yan.
Chapter 683, "This is where you will be filming from now on!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with The Capital had entered winter by November.
Chapter 710, "Handsome, Who Are You?", is the clearest early answer because it turns Handsome's situation into a concrete plot event. Early on, The man was wearing the white cotton attire of a beauty salon, the.... By the end, Wuu wuu wuu, she had actually bullied Jiang Li before, bullied her....
Chapter 700, "As long as the money is in place, I am willing to do anything!", is the clearest early answer because it turns Xingmei Entertainment's situation into a concrete plot event.
Chapter 713, "Uncle Will Owe You for Life", is the clearest early answer because it turns Wen Jiaojiao's situation into a concrete plot event.
Chapter 585, "He, Gu Yu, really has no bottom line!", is the clearest early answer because it turns Pei Ye's situation into a concrete plot event. It opens with The melee by the lake gradually subsided after an hour. and closes on When he saw the sunny side up egg floating on top of the plain....
Chapter 812, "You’re Extorting Money!", is the clearest early answer because it turns Meng Wanzhi's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Li actually called the police!
Chapter 893, "From today onwards, he is my half-brother from another father and mother!", is the clearest early answer because the buildup finally cashes out in a real clash. Early on, Jiang Yan still had unwavering faith in Daniu's character..
A practical answer is Chapter 2, because it turns the idea into a concrete scene. The chapter opens with On the top floor of the Financial Building, a gathering of dark clouds..., adds pressure through In my opinion, Mother should kick out this troublemaker who's a stranger., and ends on Jiang.
Chapter 688, "Iron Sand Palm Skill Acquired!", is the clearest early answer because the violence around Ji Yanbai becomes final instead of hypothetical.