Just a rough estimate, looking at some of the really long visual novels with multiple routes. It’s got 6 routes, multiple endings, gag endings, and branching paths. Plus, all of the sex scenes are pretty lengthy, and there’s a ton of ‘em. Of course it’s going to be long. Though, how long I’m not sure.
How long do you (or anyone else reading this comment) think it’ll take? Because I can edit it down to a more reasonable length.