My mistake is that the hints are not clear enough, I admit, but another person on the team was responsible for that. I answered anyone who needs help with this (achievements), on Discord, on itchio. I even gave the unlock code for Matsumoto when I was asked in DM.
But you didn't criticise/suggest or ask for help, you were just rude and then started talking about how I missed your support, if I wanted only money I'd make a real paywall. Have you ever seen real paywall games? Where the hentai is only on Patreon? Where the backgrounds and characters are made by AI? Where developers respond soullessly to comments like corpo? If I've offended you in any way, I'm sorry, but you don't know how many different people I reply to, some rude people, some nice people, you seemed like the first one from the first comment. And I take criticism, I've fixed a lot of things thanks to this thread and reviews, and that's why I'm still here.