I discovered this previously unmentioned Japanese WG game by the author びーこん (bii-kon). It’s a short RPGMaker VN style game about cohabiting with your (thin) girlfriend for a year. It is a complete game with 4 stages and sprites. Unfortunately to the author’s own admission, its not the full featured version they wanted to make, missing some extra features.
Regardless, it’s a cute little romp and I’ve provided a quick (google quality) English translation patch below. I’ve made a few tweaks to the translation, but its still very rough.
To download, complete and open the provided URL in the tweet below (the Https part has a space in it) and use the password kon next to the download box.
彼女太らせver0.02_en_translation.zip (60.9 KB)
To apply the patch, just open the zip file and drag the contents onto the root folder of the game. Let it overwrite a few files and you are done!