I really, really did enjoy this Visual Novel. And I think you've nailed some aspects I have yet to see on some of the more popular games on here. Mostly, with the backstory of Vergil! In most, the male yandere is just... for no reason. Just obsessed for no apparent reason, no I'm not counting "he saw you at the grocery store and fell in LOVE". It's something that always bothered me because it's just lazy writing, and it's even worse if the lore isn't available in the game, just on the authors Tumblr (I'm thinking of one very specific instance....) However, you incorporated Vergil's backstory into the narrative--with emotional neglect, religious trauma, and overall how sh**ty parents and toxic relationships give you serious, often misdirected attachment issues. Nobody saved him as a child, his parents failed to protect him, and he was betrayed by someone who was supposed to be loyal to him... so it makes sense that he would fall in love, dangerously so, with the first person who actually cared enough to do something for him... Sorry for my psychoanalysis, it's just something I loved in this short little demo! Oh and he's also hot and I hope in a future development he cracks me :p