Journey set ablaze

This is demon slayer fanfiction where Senjuro was able to become a demon slayer. After the news of his elder brothers death, Senjuro dedicated his time to training so he could become a good swordsman. To no use though...About a week later after the Kamaboko squad got healed from the Mugen Train incident, Tanjiro came to visit the Rengoku estate. Tanjiro noticed Senjuros bruised hands from training and offered to train Senjuro at least a little till he is able to hold nichirin blade of his own. Will Senjuro be the first Rengoku to not use flame breathing? Or will he join the tradition that has been going ever since Sengoku era.

Warning the book contains Mugen Train spoilers so if you didn't see the movie and 2nd season/haven't read the manga. I would recommend not to read this book yet as some of the things might not make sense and spoil the story.