I defeated the first succubus, but after that I couldn't figure out what to do next. Right now, the quests are related to finding a book. There’s the city library and the magic academy. At the beginning of Chapter 2, there’s a location in the north where a knight is protected by a magic circle. Other than that, the other bridges to the north are blocked by barricades.I killed everyone in the village except the witch — she still has protection. I couldn’t find any other way to progress.