I don't know as there's not enough information given. It could be a family if it's a domestic 'big mess story', like a mom, dad and kids dealing with a messy house.
Since we don't have details about 'the big mess story', the main characters could be a group of friends. Maybe they were on a trip and made a big mess at their accommodation. They would be the ones responsible for cleaning it up or facing the consequences of their actions.
Without more information, the main characters could be colleagues in an office setting. In an office 'big mess story', they might be the ones who accidentally delete important files, create chaos in the work schedule, and then have to work together to fix the mess they've made.
A practical answer is Chapter 158, because it turns the idea into a concrete scene. The chapter opens with Reluctantly, Jiang Yan had no choice but to forcibly join the group for..., adds pressure through Don't make me laugh, Jiang Li looks better even without makeup than she..., and ends on we're.
Chapter 162 is the strongest chapter-level answer because it starts from He Yun then realized what was happening and subconsciously wanted to check... and follows through on Having heard the news, Director Sun personally came with staff to pick.... The payoff is that the chapter closes with "?
The best chapter pointer here is Chapter 192, "He will definitely not let go of this detestable woman!". It opens with Jiang Shixu had never imagined that Jiang Cheng, who had been so arrogant... and closes on Jiang Li responded with a detached "hmm" from the other end..
Chapter 159 is the strongest chapter-level answer because it starts from Seeing the red light of the camera turn on, Su Yinwan looked at the... and follows through on Shang Shaobai, who was browsing through files, received a call from his....
Chapter 167 is the strongest chapter-level answer because it starts from By the experimental field, Qi Tianyu was quite helpless as he watched Wen... and follows through on Even when getting into the car, Qi Tianyu was still savoring the moment in....
The best chapter pointer here is Chapter 171, "Jiang Yan: There's a ghost!!!". It opens with The afternoon rain stopped and started again, making the air even more... and closes on They weren't any big shots; did they deserve her to personally run over to....
Look to Chapter 200 for the clearest answer. It begins with Shang dismissed the thought of turning around and walking away., keeps building through The PD had already come over, and with the camera rolling, walking away..., and lands on Are you doing this on purpose?" Zhao Lang instantly put on an.
The best chapter pointer here is Chapter 180, "West District Police Station Steps In!". It opens with In the end, everyone received gifts that were completely opposite to what... and closes on she simply didn't want to associate with the so-called protagonist of the....
Chapter 185 is the strongest chapter-level answer because it starts from He was so anxious that he immediately picked up the megaphone. and follows through on The next, she'd complain that the ground was too slippery to walk on..
If you want the clearest chapter reference, go to Chapter 150. Early on, Upon hearing the first part of Jiang Li's words, Zhang Cheng dismissed...; later, the chapter leans on After all, that information could be found online..