Serpent breathing is so different from the anime, besides his long-range attack in dsrpg2. I will say this before Hinokami is released but can it be more realistic to the anime?
An Example is how the anime season 4 first episode shows a purple slash with a snake design going along with it as if the tip of his Nichiren blade was a snake's head. Rather than the ability to summon a snake like you're Megumi Fushiguro