What are the main differences between the Horitsuba Gakuen manga and its adaptations?

Overall, the adaptations of 'Gakuen K' manga remain quite faithful. Maybe some minor character details or scenes are tweaked for better presentation, but the main plot and themes stay the same.

There aren't many major differences. The adaptations mostly stick to the key elements of the manga.

The main differences are in some character developments and plotlines. Some minor characters might have more or less focus depending on the adaptation.

Not many major differences. The adaptations mostly stick to the core plot and characters of the manga.

Well, the main differences might be in some character depictions and the pacing. But overall, the core story and themes remain the same.

It's mainly about the daily lives and adventures of the students at Shiritsu Horitsuba Gakuen, with various fun and sometimes challenging situations.

It varies. Sometimes the adaptations stick closely to the manga, but there can be differences too.

Well, usually the adaptations might have changes in the plot or character designs. Sometimes they cut out some minor details to fit the format.

The main differences might lie in the presentation and possibly some minor plot tweaks. But generally, they stay relatively similar.

Well, one significant difference could be the way the storylines are focused. The manga might have a broader scope, while the yaoi adaptation could zero in on the romantic elements. Also, the art style and tone might vary to suit the yaoi genre.