Well, it does sound like a very generic chuunige from the way you describe it. Even classics like Dies Irae has most of the same problems and overused tropes (and it's one of the reasons why I became kind of bored with it after just finishing one route). The reason why they are considered good VNs, on the other hand, is that they have some other very good points that make the whole overall experience worth it. This VN... probably doesn't have something like that, from what I understand.