Infinite Wealth vs Ninja Gaiden 2 Black

Hey everyone!

As the title says I'm stuck between picking up IW or NG2 Black. I haven't beaten any yakuza yet and was considering starting with Infinite Wealth and going back to 0. I also have never played a Ninja Gaiden game (just Nioh 2). I am stuck on my choices and was curious about input from anyone on what is worth it?

I heard the story in IW wasn't superb and the game itself was maybe slow to start. Anyway, hope to hear back!