My favorite game... EVER... has a two!?!
Technically, this is the third game in the series. The first sequel is Mou Sugu Natsuyasumi
, and isn't really so much a sequel as it is a spin-off/side story. It follows the three "generic" girls from the first game (the three girls featured in the ending where you don't end up with one specific character). They actually briefly reference Mou Sugu in Gakushu 2 when they talk about where all the original game's characters are. That game's art it kind of weird at times, like the artist had spent a long time drawing more mature female body types and kind of "forgot" how to draw loli ones. There are some girls with unusual curves going on in some of the pics.
This game, though, is a proper sequel, with the same premise as the first game, but only one returning character (actually the other "returning" girl that will show up was in a single image of the original, in an orgy/group sex scene, I think). This game has less options/girls to chose from than the original, and it definitely doesn't feel as "open" as the first game, but I think I like it more simply because the girls are all barefoot the entire time instead of walking around completely naked but still wearing shoes and socks. Eh, it's the little things, you know?