Succubus Runa and the Erotic Dungeon

User Summary As Runa is caught in the rain while heading home, she decides to stop and get a hot bath and a warm bed. However she suddenly finds herself in a strange place. As she leaves this strange place she is confronted by an old man and his young assistant to become a magical soldier and is forced to fight monsters - that can't be fought with any normal weapons - only with "that"