prejudice are easy, getting along and understanding another specie is not 🤷♂️Now hold up, yes their powers are dangerous, but have there been any victims off this nest even? It really depends on the series but them feeding on someone doesn't always equal killing, and often just comes down to do they decided to or not. If they can take only some energy and it just leaves the one fed on tired then this wasn't necessary. Clearly she is about to join the MC's group which means that she has a way to coexist. Now if there are victims of that nest than there is at least some justification as they aren't much different then bandits, but that the guildmaster is listing the potential harm as reasons is not ok, this lone succubus is a unconfirmed threat.
Phonetically, it sounds more like Sparta to me.Maybe the name "Sopada Sudoda" comes from the Spanish "Espada" meaning sword and "Sudoda" meaning something in Japanese (strongest?) since I absolutely refuse to believe that her name is supposed to mean "sweated sword"
Think of Bleach and their "(e)spadas" in their "Hueco mundo" and the Spanish references start to fit more and more