Calimachus, when the Chapter 4 (0.5) update came out, all previous purchasers should have gotten an email with the new links. If you did not receive one, email me at support@stonefoxstudios.net and I'll get you an updated link. I cannot DM you on Itch.
Hi, found the mail, received it 10 days before I bought it again in January. As I can't support you on Patreon, for me the second time is an additional support via Itch for your fantastic VN now.
