Not entirely. There were some parts of the manga that weren't included in the anime.
The Horimiya anime didn't cover the whole manga. Some storylines and characters' developments were left out to fit the anime's runtime and pacing.
The Horimiya anime didn't fully encompass the manga. Certain details and subplots were omitted, but the core of the story was presented. It depends on your perspective whether you feel it was a comprehensive adaptation or not.
Chapter 191 is the strongest chapter-level answer because it starts from This change made Jiang Cheng extremely uncomfortable. and follows through on Meanwhile, Jiang Shixu was staring intensely at the fragments on the floor..
A practical answer is Chapter 159, because it turns the idea into a concrete scene. The chapter opens with Seeing the red light of the camera turn on, Su Yinwan looked at the..., adds pressure through The moment the door closed, he straightened his back, and his originally..., and ends on Shang.
Look to Chapter 157 for the clearest answer. It begins with It was already the last day of Flash Change in his dream., keeps building through His good score had successfully surpassed Jiang Li, making him first in..., and lands on I'm laughing myself crazy, do actors all have such strong.
Look to Chapter 164 for the clearest answer. It begins with Damn, the production team is so shady, they're still doing a live..., keeps building through Otherwise, I would never have found out., and lands on The current Jiang Li did indeed make him see her in a new light, to some....
Chapter 191 is the strongest chapter-level answer because it starts from This change made Jiang Cheng extremely uncomfortable. and follows through on Meanwhile, Jiang Shixu was staring intensely at the fragments on the floor..
Look to Chapter 152 for the clearest answer. It begins with While most of the villagers of Chixia Village were gathered at the village..., keeps building through The unassuming structure stood out oddly against the backdrop of its..., and lands on That shouldn't be." Zhao Lang's eye color.
A practical answer is Chapter 165, because it turns the idea into a concrete scene. The chapter opens with How come everyone else got a solid six points, and he ended up with just..., adds pressure through And this scene was fully witnessed by Zhao Lang from the second floor., and ends on Various.
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.
Look to Chapter 157 for the clearest answer. It begins with It was already the last day of Flash Change in his dream., keeps building through His good score had successfully surpassed Jiang Li, making him first in..., and lands on I'm laughing myself crazy, do actors all have such strong.