Kafka is one of the playable character in the Grand Quest. She was the captain of the Sixth Division of Demon Slayers. She appeared in Krantz's squad, countering Rhoa's opinion, and ended up arguing with him. Kafka was a scientist who studied the demonic arts in the Randall Empire. She was born in a family of magicians. When she joined Summoners' Hall, she found ancient texts about the demonic arts, unlocking a myriad of lost knowledge from them. It was thanks to her knowledge of magic and Rhoa'