Dungeon Fighter Online (Dungeon Fighter Online) has a rich historical background. Here are some recommendations for this novel: 1. Descent to the Dungeon: The Rise of the Dark King This was a classic Dungeon Fighter Online novel about the rise of an evil magician named "Shadow" who attempted to rule the entire Dungeon World. The protagonist was a young adventurer who had to fight a fierce battle with the shadow and his men to save the entire underground world. 2. Descent to the Dungeon: The Lost Mines This was a novel that delved deeper into the theme of Dungeon Fighter Online. It described the various challenges and adventures that the protagonist encountered while exploring the lost ruins. The book also talked about some of the characters and plots in Dungeon Fighter Online. 3. Descent to the Dungeon: The Demon's Eye This was a novel about the Demon's Eye (Demon Abyss) in Dungeon Fighter Online. The protagonist was a young adventurer who had to travel through various dangerous areas in the Dungeon and Warriors to fight fiercely with demons and other evil forces to finally uncover the secret of the Demon's Eye. The above are some novel recommendations about the historical background of Dungeon Fighter Online. I hope they can help you.