I can confirm that if you discover Mibu village and the watermill idol, he skips moving to the area near guardian ape. I started a new save and basically went straight for corrupted monk(mibu). I wanted to see if I could kill her within a few tries. I ended up getting her first try. To make a long story short, I skipped o'rin by taking the route around her, killed corrupted monk, and basically went to ashina reservoir to speak with Jinzaemon. He said his normal dialog and that was that. I was expecting to meet him in abandoned dungeon/ bottomless hole, but he wouldn't show up. I then thought that perhaps he skips the guardian ape area entirely if you have already discovered the idol near O'rin. Sure enough, I was right. This means you can finish his questline pretty early. I haven't even been in Ashina castle yet, or sunken valley and I've already killed corrupted monk.

What if you talked to Jinzaemon before talking to the guy in abandoned dungeon? Are you still able to lure him down there for Doujins quest??

what a piece of***** of questline

first time I talked to him as Ashina Reservoir, he said something like "why can't i hear the music? it was you wasn't it! give it back to me!" and started attacking me.

I feel like you should have been able to send him to Anayama as well. He did ask for a strong person to help loot the battlefield… though I guess he was too ensnared in that damn music.

I'd like to add that when sending Jinzaemon Kumano to Doujun, his unconcious body can be seen behind him in the locked chamber, not only can this quest line be sped up by resting at an idol and talking to doujun again repeatedly, at one point Jinzaemon Kumano's body will change into a lootsack. when this happens the voice/lines of the merchant at the start of the abandoned dungeon will change. I believe the merchants new dialogue also sheds some light as to why phantom enemies start randomly appearing everywhere in the game, as this is mostlikely a curse by Jinzaemon Kumano.

This guy is such an ****** raaaa faaak

Killing orin before starting his quest line makes him hostile

Always send him to Doujin, at least Kotaro has a decent quest reward

Someone here said he's weak to poison. Okami warriors are weak to poison Okami's descendants are weak to poison Orin is weak to poison. Jinzaemon will give Jinza's jizo statue to us after the quest. Orin call him "that child". Jinzaemon's father forbid him from going to Mibu..... Only he can hear the song from that *****ing far. Jinzaemon is orin's child?