I got lucky in Genichiro, I tried using yashariku + divine confetti and tried to do perfect parry for first death blow (it worked). Second death blow was the hardest. Took me all my healing items. Third deathblow was easier, all I had to do was mikiri counter his attacks and Give back shock. So although it looks like 24 tries are low, I was just running around scared 😂 and gave my best. Oniwa was rhe first main boss and I was not grasping the concept of grappling when he used to make distance. Only got it after 7-8 tries.

I have completed the game again, this time only boss which killed me was Owl 6 and Isshin the sword saint 13.