Hi,
We are ecstatic that people find the story engaging!
When it comes to the character amount, we can't really say an exact number. We do plan on introducing more characters over the next episodes. The girls we have right now are just the tip of the iceberg. We want to have a large pool of romanceable characters!
When it comes to the music, we have had it implemented from the very beginning. However, ren'py decided to package it into a separate rpa file and the executable couldn't find the music files. :C This has been fixed in the latest hotfix update! You can go and download it, it's version 0.01.b.
Hope you enjoy,
The SWB Team