In fact, there was already an outline for this before the completion of "Twelve Nights", but due to many reasons (mostly laziness) it was never put into writing. It was suddenly mentioned recently, and I think it would be better to end it completely (although I am not a perfectionist). Since I was faced with the problem of insufficient characters (and this problem is really serious)... I had to consider whether to write a sequel or a companion volume, but if it was just a prologue, it would probably be fine, so I thought I'd give it a try anyway. (I feel guilty using this kind of thing to celebrate the 20th anniversary of pushing back the wall...)