One of the fun parts of working on a project like this is pulling apart and analyzing the game resources on the disc. Of course, it’s fun to have all of the individual character sprites and environment backgrounds and everything. But there are also some interesting artifacts of the development process.
For instance, there’s a huge directory full of early character portraits with the names of facial expressions pasted over them, presumably for testing purposes. Before Nagi-san had all of the various characters’ expressions drawn, they’d just drop in these bogus expression images to make sure the correct ones were showing up at the right time. Here’s Cynthia being shy.