Well, it's hard to give an exact and up-to-date number. But typically, there have been quite a few - more than 35 volumes of the Haikyuu manga.
The exact number of Haikyuu manga volumes keeps changing as new ones are released. But up to a certain point, it was around 45 volumes.
A practical answer is Chapter 79, because it turns the idea into a concrete scene. The chapter opens with Jiang Li leisurely said, "I bought this weeding machine, and according to..., adds pressure through Many had even spontaneously formed a fan group for Jiang Yan, promoting..., and ends on.
If you want the clearest chapter reference, go to Chapter 34. Early on, Seeing that the public sentiment wasn't quite right, Su Yinwan felt...; later, the chapter leans on It was she who had anonymously paid someone to write the critical article....
If you want the clearest chapter reference, go to Chapter 60. Early on, What's with Jiang Yan, treating his own sister Jiang Li like this?" "He...; later, the chapter leans on When Jiang Li found a place to live, she didn't bother with him either,....
The best chapter pointer here is Chapter 64, "The Morning Battle". It opens with Chixia Village lay in tranquil slumber. and closes on He'd been a host for so many years; he was used to it..
If you want the clearest chapter reference, go to Chapter 61. Early on, Hahahaha, oh my god, Jiang Li's mouth is even more venomous.; later, the chapter leans on She broke Jiang Yan's defense with just one sentence." "Laughing to death,....
Look to Chapter 47 for the clearest answer. It begins with Qi is actually second???] [Did the production team make a mistake?, keeps building through Isn't Qi supposed to be first?] [So who's first?, and lands on Qi is so excellent and only got 17, yet Jiang Li comes in with 22?.
The best chapter pointer here is Chapter 86, "If you don't welcome me, why should I stay?". It opens with After over an hour of fuss, it was finally time to eat. and closes on But then her expression became resolute and arrogant..
A practical answer is Chapter 46, because it turns the idea into a concrete scene. The chapter opens with Upon hearing this, everyone but Jiang Li perked up with high alert., adds pressure through There must be some mistake with the crew's calculation, I demand a..., and ends on Did you calculate.
Chapter 46 is the strongest chapter-level answer because it starts from Upon hearing this, everyone but Jiang Li perked up with high alert. and follows through on Did you calculate the score incorrectly?!" And 13 points?!.