Kuntisu-Gami Longplay played on PC

The true final boss is much more difficult than any of the other bosses in the game, which can all very easily be cheesed with Byakko's Claws + Taion's Lighting + any third Tsuba guard attack + Punishing strike + Chozusha Basins. The most powerful Tsuba guards in the game have extremely long cooldowns and because they will not do nearly enough damage against Cursed Soh to kill them quickly and you will only get one shot with them I have an alternate strategy below.

Tips:
Don't waste rations on villagers since they will all die eventually. Ninjas have good attack and durabillity. Spam suzaku's flame and genbu's might and charge attck to deplete cursed soh's resist guage and use punishing strike. Summon the specter often and lock on to double the damage. The specter also stays alive if Soh dies so keep fighting. Occasionally using spider shot can be helpful if you are far away to slow down cursed soh. Save the Chozusha basin until the end in the last part of the fight when the cursed Soh summons a specter.

Equip
Bow attack:
Spider Shot
Dance style:
Shiden's Dance
Villagers :
Ninja x12
Tsuba Guards:
suzaku's flame, genbu's might, Kijin's Specter
Mazo Talismans:
1) Synergy (charge non-selected tsuba guards)
9) Nyorai (attack+++)
12) Cursed Hound (spam charge attacks)
15) Guardian (guard+)
16) Rabbit's Cup (tsuba guard rechard speed+)

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NG completion time: 25 hours (Replayed multiple levels and revisited bases to unlock most content)
NG+ completion time: 7 hours