Hi, why is the VN, the manga, and the ova all a different retelling of the same story "A choice with no regrets"? Why didn't they make it all the same story?
The same reason the SNK anime is not 100% the same as the manga, they were all created by different groups of people. Each group has their own way of doing things, it happens all the time with spin-offs based on source material (like movies that are based on books, for example). They edit the source material to flesh it out and make it most appealing for whatever the consumption of the media is. Meaning the VN was supposed to be played through almost like a game, the manga was meant to be read one chapter at a time, and the OVA was meant to be watched through.





