The main theme could be about the strong bond between characters, like a brotherly connection that endures through various challenges and perhaps even death.
One great fanfiction could be 'Edward and Winry's Unspoken Bond'. It beautifully captures their relationship. The author delves into how Winry's presence is a comfort to Edward during his tough times. It shows their shared history and how it has shaped their connection, with small moments like when Winry fixes Edward's automail and they exchange glances full of unspoken emotions.
Their relationship is appealing because of the long - standing history. They grew up together. In fanfiction, this can be explored in many ways, like showing how their childhood memories influence their present feelings.
😋I highly recommend you to read " The Ace Tanker of the Anti-Japanese War ", which is a military-war-themed novel. It tells the story of Wu Dalong, the commander of the National Armored Corps, and his brothers driving a light tank with weak armor on the anti-Japanese battlefield. This novel was based on the real historical background of the war. There was no fantasy or drama, just a real World War II tank showdown. It meets all the conditions you requested. I hope you will like this novel.😗
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 ~😗
In the Dark Brotherhood story, there is often a Listener, who is a key figure in receiving the contracts. And there are assassins within the brotherhood, like the ones who carry out the kills.
As I don't know the exact story, I can't say for sure. But likely there would be some central gay male characters who form the core of this brotherhood. Maybe there's a leader - like figure among them.
Perhaps they are characters from different backgrounds who come together and form this brotherhood. One could be a leader type, strong - willed and decisive. Another might be the more sensitive one who brings an emotional depth to the group. And there could be a character who is the joker of the group, always lightening the mood. But again, this is all speculation without having read the book.