I will update more tracks whenever I come across them but here's the ones I've found!
Track 1
Track 3 PART | 1 | | 2 | | 3 | | 4 | | 5 |
The Story of the Samezuka Bug Catching Event
Makoto and Rin with a Black Cat
Here's the download link to the whole drama CD but note that translations aren't included so I'll update you guys when I've found them all.