This chapter is a complete guide for The Conspirators quest. Here, you will find a walkthrough, as beneficial as possible, for this side quest.
Ayakomori Guardian Spirit
Smithing text: Atagi Sadamune
Smithing text: Kingo's Armor
Amrita - 4040
Gold - 18700
Clear the beach
The first thing that you should do after starting this mission is to go to the Shrine. You can notice a few warriors near that place. While you are fighting with them, you must watch out for cannons from the ship nearby. The fight with the warriors shouldn't be a big challenge to you.
Jump into water before you move forward. Behind the last ship, on the right, you can find a Kodama. Send the creature to the Shrine and go along the rocks.
While you are on your way, you can come across a few warriors. You reach a cave. If you have any of the petards, you can throw them at warriors in the cave. With a bit of a luck, you can detonate barrels with powder. This will allow you to avoid a few duels. Collect all treasures and get on the first ship.
Clear the lower deck of the first ship and enter the upper level. The warriors, that gathered next to the cannons, can be eliminated with a rifle. There aren't many enemies on the upper deck and most of them gathered near the cannons. You should enter the rooms on the upper level and reach the highest point by using the ladder. There is a treasure chest there. It is guarded by a single samurai and the only difficulty is that you fight in a small room.
In the middle room you can find damaged floor. When you stand on it, you will fall into a closed room with a giant skeleton. There, you can also find a chest and Kodama.
After that you must go on the ships that you saw near the Shrine. A rifleman can be found near the mast of the first one. Kill him from a distance and climb on a platform on which he stood. At one of its ends you can find a Kodama. Going to the other end allows you to jump on a neighbor ship.
At first, it may seem abandoned but you will be quickly attacked by a Flying Bolt accompanied by a few Oni-Bi. The enemy, called Flying Bolt, is your biggest problem. Mainly because it can cast an effect that slows you down. Defeat the enemies and jump into water near the Shrine. Go back to the first ship and from there, you must head to the opposite direction.
The cave and ending the mission
After going through the first ship you reach a shipwreck. In the center of it you can notice mist behind which there is a giant skeleton. Lure him out from that place near the first ship and finish there because fighting him inside of the shipwreck is more difficult because of holes in the floor. Then, you must enter the cave by using a wooden footbridge. On the left, there is one skeleton but besides him there are no other enemies inside of the cave.
Be sure that you collected all treasures and summoned three Kodama to the Shrine. If you did that, you can now go through the red door and pick up the item the lies in front of you on the ground. You will be attacked by two ninjas. When you defeat them, you will be immediately attacked by a Yoki. Defeat the enemy and finish the mission.