Like I said in my long synopsis/description, This is an idea for a possibly good story, but I suck at writing, and I couldn't make this into a long successful story, so I basically made a good start for a story for someone else to make, I ask that if you do make one keep the fgo characters aside from sengo muramasa out of the story or to a minimum. Also sengo might be registered as OP because I want him to be the merged form of Shirou Emiya and Sengo murmasa but in terms of Sengo just has Shirou emiya's powers of tracing and projection, unlimited blade works and the weapons he traced, etc.
For the pairing like I said its for the writer to decide but I made it seem like it might lead to erza so its up to you if you want to pursue that pairing.
For plot I was thinking of two different approaches.
1. Erza's usual armor company Heart Kreuz recommends Erza to a certain blacksmith *cough swordsmith *cough and goes to meet him with the gang (team NATSU) and let the writer decide what to do next.
2. Sengo was a part of fairy tail and is Erza's swordsmith and or teammate before team natsu.
3.Sengo visits Hargeon and bumps into Natsu and joins fairy tail and late meets erza and let writer decide what to do.
4. Let the writer Do whatever they want to do with the story.
5.Make the ultimate plot twist of Sengo being the lost brother of Erza or Half-brother of Erza. This could come into play since they both have a shade of red hair, and both deal with weapons and lots of swords but have a few others as well.
YOU ARE READING
Fairy Tail's Demonic Blacksmith (Warning: Not a story this is an idea for one)
FantasyErza Scarlet, the Queen of the Fairies is known for her various armor and weapon collection and skill in using them made by the famous Heart Kreuz brand. But what if she was recommend a new blacksmith who just so happens to be one of the best swords...
