This was adapted into the very first episode of the HoriMiya: The Missing Pieces supplementary season of the anime. And, boy, was that a watch. Feels like they did a decent job with the anime version, from what I can recall compared to what I just read.
This felt like it was faithfully adapted, but I know I've already seen some great parts that didn't make it into either season of the anime. This will be a great read learning more about their high school lives.