It could be that there was a big party or meal, and no one had time to clean up. Or perhaps it's just for comedic effect to show a messy situation.
Maybe the characters were too busy or just too lazy to do the dishes.
Chapter 771, "Just Friends", is the clearest early answer because it turns Do's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Su Yinwan had lost five million followers in less than a week.
Chapter 23 is the strongest chapter-level answer because it starts from Although Jiang Li exerted very little strength, Jiang Yan instantly felt... and follows through on However, just as she buried herself in the study, pouring over mysticism....
Chapter 825, "This method is absolutely not feasible!", is the clearest early answer because it turns Xu Mei's situation into a concrete plot event.
Look to Chapter 22 for the clearest answer. It begins with Hearing this, Su Yinwan looked at Shang Shaojing with a face full of..., keeps building through Shang, but it's not necessary;
The best chapter pointer here is Chapter 11, "She Smiled, He Panicked". It opens with After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and... and closes on Miss Qin, please accompany us to the police station to explain this....
If you want the clearest chapter reference, go to Chapter 21. Early on, Jiang Li's clear and logical explanation had everyone stunned in place.; later, the chapter leans on Jiang Yan had wanted to defend Su Yinwan since his sister's temper in the....
The best chapter pointer here is Chapter 23, "Became Trending for Being Scolded". It opens with Although Jiang Li exerted very little strength, Jiang Yan instantly felt... and closes on However, just as she buried herself in the study, pouring over mysticism....
The best chapter pointer here is Chapter 17, "Madam, the eldest young master has disappeared again". It opens with Jiang Li glanced at Jiang Shixu, who was tense and anxious behind her, and... and closes on I've been a mother for more than ten years but never tasted anything made....
Chapter 890, "Why didn’t anyone inform me?!", is the clearest early answer because it turns Jiang Mingchuan's situation into a concrete plot event. The chapter gives readers a real answer by opening on Zhao Lang made a great impression on Jiang Mingchuan.
Chapter 765, "Dead Early in the Morning!", is the clearest early answer because the violence around Didn becomes final instead of hypothetical.