u/culteonofjolteon

So I'm going through my first playthrough and was just looking at some general stuff to grab for a mage build(i loved Bayonet caster in code vein 1). I saw something about the "missable" blood codes. I was wondering if it was indeed possible to get all of them in one go, and also if I did do whatever it took to do that would I miss out on story stuff? Or would all the interactions be available.