I don't have a definite answer. Maybe you could check out indie Caltech comics or ask comic enthusiasts who focus on this specific area. Sometimes, creators drop hints in bonus content or interviews.
Well, it's hard to say for sure. Sometimes, these secret spots are hinted at in special editions or limited series of Caltech comics. You could also try looking for fan theories and blogs dedicated to this topic.
The best chapter pointer here is Chapter 31, "Master, I've been having some bad luck lately!". It opens with Before Shen Lan had reached the backyard, she already heard the sounds of... and closes on After staying in the study and reading for another day, she finally....
If you want the clearest chapter reference, go to Chapter 33. Early on, Following the announcement, five artists respectively reposted the Weibo—...; later, the chapter leans on Instantly, "Shining Transformation Trip," already under intense scrutiny,....
A practical answer is Chapter 59, because it turns the idea into a concrete scene. The chapter opens with After walking for about two or three hundred meters, the old man stopped..., adds pressure through Your brother might just be kind enough to take you in., and ends on My phone, my cigarettes.
A practical answer is Chapter 25, because it turns the idea into a concrete scene. The chapter opens with Therefore, from his childhood, Jiang Shixu had felt an extreme aversion to..., adds pressure through When she saw the woman behind the desk, she smiled and said, "Look who..., and ends on.
A practical answer is Chapter 21, because it turns the idea into a concrete scene. The chapter opens with Jiang Li's clear and logical explanation had everyone stunned in place., adds pressure through Yinwan, don't worry, I won't let you suffer in vain., and ends on But the implications could be.
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....
The best chapter pointer here is Chapter 58, "Jiang Yan Stranded Abroad". It opens with Facing Jiang Yan's triple barrage of questions, Jiang Li's only response... and closes on By ten o'clock, Jiang Yan was still wandering outside..
Chapter 73 is the strongest chapter-level answer because it starts from Director Sun, tongue-tied, finally managed to squeeze out a sentence,... and follows through on Despite Wen Jiaojiao's fiery temper, there were still many who were drawn....