Nioh 2 Remastered: 5th boss - Kamaitachi

Please keep in mind that I'm a filthy casual and my skills aren't in the top league, so to speak.
This was something different and I was stuck on this for a long time. I am not used to blocking in soulslike-games. I always try to dodge, but it seems that in Nioh 2 blocking is equally as important. That is an interesting decision compared to FromSoft games for example and I wonder how much I should had used it in earlier bosses.
Luckily there should be different difficulties after this first run, so I have plenty of time to test different playstyles.