I don't know which web novel 'cold and handsome brat' is referring to. Can you provide more context or information so that I can better answer your question?
A practical answer is Chapter 250, because it turns the idea into a concrete scene. The chapter opens with The knowledge that several guests were soon returning had fans arriving at..., adds pressure through Not seeing me for so many days and not even asking how I am, you think—"..., and ends on.
A practical answer is Chapter 230, because it turns the idea into a concrete scene. The chapter opens with Shang Shaojing's expression wasn't looking too good either., adds pressure through Is this how you treat my daughter?!, and ends on If he knew that your stepmother was secretly prompting you.
Chapter 227 is the strongest chapter-level answer because it starts from Your Four Pillars of Destiny is very strong, with wealth, authority, and... and follows through on Your three palaces are prosperous, and correspondingly, your marriage....
The best chapter pointer here is Chapter 285, "Ksitigarbha Bodhisattva". It opens with He could distinctly feel his back rubbing intimately against the ground... and closes on Fortunately, the Mystical Skill of Xuan Sect also included knowledge of....
Chapter 251 is the strongest chapter-level answer because it starts from If Du Qinglian was somewhat angry just a moment ago, now she was simply at... and follows through on The moment the connection was successful, before even appearing on camera,....
Chapter 274 is the strongest chapter-level answer because it starts from Upon hearing this, Officer Xu became even more excited, but catching a... and follows through on I believe with some rest, he will recover." Relieved at last, Hu Zi's....
The best chapter pointer here is Chapter 241, "Thieves Will Shed Two Tears When They Break In". It opens with It wasn't the director," Jiang Yan said with a blank expression, "Did you... and closes on However, as he turned around, before he could see the person properly, a....
Chapter 268 is the strongest chapter-level answer because it starts from To ensure the company's successful listing, Shen Lan even went so far as... and follows through on Jiang Li has nothing to do with Director Sun!" "Because she is my niece!"....
Chapter 242 is the strongest chapter-level answer because it starts from Just when Jiang Yan called to heaven and earth in vain, he looked up and... and follows through on Just as he pushed open the creaky wooden door, a huge dead spider fell....