So quite a few years ago, I read a hentai-type manga on the internet, written by a Japanese author. It's main selling point was that it revolved around belly inflation. I enjoyed it enough, but what got me is that there is potentialy a whole culture's worth of inflation related stories, videos, animation ect. So recently, I tried using Japanese search terms to find this kind of stuff. I tried "weight gain", "Inflation of the belly", and so on, but I couldn't find anything related to belly inflation, mostly only pictures of fat people and health videos.
