Wow, wow, wow, hold on, I have to stop you right here because you claimed that non-sandboxes visual novels are linear stories without any branches and divergences, which is wrong because the very point of visual novels is all about making choices which direct the story in different alternative paths according to our choices otherwise these are NOT visual novels, these are KINETIC novels and I avoid kinetic novels specifically because I'm bored with a story which doesn't involve my input, that I am a mere witness without any influence on the events, I pass, I prefer stories which ACTUALLY care about what I want and require my input to go on, which can't proceed without my involvement and you don't need it to be a sandbox to do that. π
Actually, Devil's Academy already contains lewd scenes with Koneko, Akeno and Rias however none of them is part of the story, they are fan-service bonus content, which is what frustrates me because I have no interest in scenes which don't actually happen in the story, even the scenes with random girls are not part of the story as they are all part of the in-between chapters and not of the chapters themselves. π