This is not a guide, but a request for strategy/pointers.
I would like to get some feedback, or helpful hints, from people who have cleared this.
I've made three attempts at clearing Oonaobi Shrine in Izumo (on Normal - this is my first pass through), and I haven't yet managed to defeat Yatsukazou, the final boss.
I am a somewhat squishy Daring Twin Sword user.
Several points against me:
1. I am level 20
2. I am soloing it
3. I don't have much in the way of fire, ice, rain (against which he is apparently weak)
In my favor:
1. Kikusenkaku +40 (two rank 4 skills)
2. Seikounoken +20 (rank 4 and 3 skill)
3. Patience
I can make it to the boss without much trouble, but I have to use up some of my sushi on the way.
By the time I reach the boss, I don't have a full compliment of healing supplies. I'm also carrying HP recovery in my liquor bottle now.
I draw the boss into the narrow bottleneck area before the large arena space, so that when he does his spinning torpedo move, he can't travel very far (so I don't have to waste time running after him to catch up), and I try to jump in and hit him with a weapon skill and then dodge away and wait for the lull after the next attack.
Once all my healing items are gone, then what I have to do is run away toward the entrance, outside of his range, so he'll go back to the arena. Then I have to stand around and wait for my HP to recover naturally, until I'm full again and can go try to get in another couple of hits.
I don't know which summon I should use, but I've mainly used Miroku, on the assumption that he might deal a few heavy hits.
By now, I have used up all of the Hi-Potions I had, as well as all of the Soul Eggs I had.
I imagine that this fight would be completely different if I were ten levels higher (recommended level), but I've managed to make it this far, and I know people have gotten to Kyoto solo at lower levels than that.
I also expect that this would be very different with a full party.
Am I foolish for trying to beat this on my own right now?
I'm not dedicated to soloing; I just haven't felt like partying up with anyone (a little shy), and haven't needed to so far.
I would enjoy the pride of accomplishment, being able to say I made it to Kyoto solo, but I'm not attached to it.
Should I just look for a party to go with?
Should I wait and level up before trying again?
Or is there something else I can do to gain an advantage, or to better prepare myself, for this fight?