Genichiro Door Cheese Tutorial

Much longer than I expected. In advanced, as always, I am so sorry for the bad and poor english. But at least I hope I can help you with this.
Any questions? Write on the comments and I'll answer.
SOCIALS:
Twitch: / ponetchmas
Discord: ponetchmas#1148
Sekiro Speedrunning Discord Server: / discord
OBS: I'm a bad content creator so I forgot to put the highlighted image on my video, so here's the link for it (just to make sure which wall mark I am talking about): imgur.com/a/Uu...