Do you know any novels with brotherhood as the theme?

Of course! The novel I recommend for you is: "The Years When I Was a Gold Hunting Lieutenant","The Hero of the Sword","The Battle of the Reborn King","The World in White at the End of the Song Dynasty","The First Battle Son-in-law","The Emperor of the Doomsday","Why Don't Men Bring Wu Gou","The Record of the Beacon Fire","The Nine Yang War Emperor","The World's Heroes", and so on. These novels all contained stories of brotherhood. It was worth reading! I hope you like this fairy's recommendation. Muah ~😗