Entrance
From the entrance bridge, grapple across the moat and go left.
Sculptor's Idol (Ashina Castle)
Path to Abandoned Dungeon
From the entrance bridge, grapple across the moat and go straight through the open gate.
"I heard you were the one .."
Kill the soldiers on the bridge.
In the courtyard.
Sculptor's Idol (Abandoned Dungeon Entrance)
Prayer Bead (1400 sen)
Mask Fragment: Dragon (5000 sen)
Path to Ashina Reservoir
Go left from Ashina Castle culptor's idol and open the door.
Go straight through the building and out the back door.
Drop down to the bottom of the building.
Gate to Ashina Reservoir
Drop down to the bottom of the building.
Revisit Ashina Reservoir
The area is optional, but it contains an NPC, two minibosses and a prosthetic tool.
Main compound
On the ground
Main stairway
Side area
To the right of the main stairs
Edge of the moat. Go right at the entrance and then right again.
Go right at the entrance and look around the open area.
Requires killing the nearby Ashina Soldiers.
Talking to him makes him move to Dilapidated Temple and open a shop there.
Go up the main stairway and turn right at the top. Stand on the crumbling ledge and look down, and you should see Fujioka sitting behind a wall.
Rooftops
Upper Tower
Antechamber
Main rooms
Secret room
In the ceiling.
Sliding door
In the room with the Ashina Soldier, Isshin's Pupil and Maid of the Dojo.
Down the middle
Passage to Isshin Ashina's room
At the bottom of the wooden stairs, turn and go past the stairs, cut through the sliding panels and keep following the path until you come up in a room opening up to the rooftops again.
Disappears after defeating Genichiro.
On a roof next to the Isshin Ashina's tower.
Dojo
Roof
Bloodsmoke Ninjutsu Technique
Sculptor's Idol (Castle Tower Lookout)
Kuro's Room
There is a secret passage under the stairs to the roof, leading to the dilapidated temple.
Talk to Emma
Sculptor's Idol (Upper Tower - Kuro's Room)
Talk to Kuro
Isshin's Room
After talking to Isshin Ashina
Ask about the flower.
Give Sakura Droplet
Acquired by defeating Lady Butterfly in Hirate Estate.
Eavesdrop on Kuro
Give Unrefined Sake
Rear
Old Grave
Sculptor's Idol (Old Grave)
Becomes unavailable as a merchant mid-game, but the text and the tool can still be acquired.
Anti-Air Deathblow Text (1200 sen)
If you don't buy it before mid-game, it can still be purchased from Offering Box for 2200 sen.
Iron Fortress (1600 sen)
Buying this item will stop Blackhat Badger from selling anything else.
You can also pick it up for free in this spot once you've reached mid-game.
Moat
"You're saying we don't have enough salt?"
Back at Outskirts Wall - Stairway:
Great Serpent Shrine
If you have learned the final skill in any skill tree.
Sculptor's Idol (Great Serpent Shrine)
Make your way down towards the Sunken Valley.