Sewer Town – North is the seventh area of the game. This area includes an optional interaction with Adrammelech that causes Assis to move to the Temporary Campsite earlier than defeating the boss. The main side thing in this area is that if you die to the Hunter of Bladers boss the first time you are taken to a jail area in Outer-Wall Ruins – Ancient Machine Works where you can have another interaction with Millaire. This is included in the walkthrough below as it is likely you will die to the boss your first time fighting them.
Sewer Town – North
Sewer
NPC: Adrammelech – From the Branch take the path leading to the right up the long ramp to where a big gate will close before you can reach it, then speak with Adrammelech on the left, exhausting his dialogue. After speaking with him here Assis will move to the Temporary Camp branch for the rest of the game. Adrammelech questline #2 (optional)
Take the opposite path after the Branch to reach the next area.
Sedimentation Tank
Key Item: Console Key – From the branch follow the main path and drop down to the lowest level, then defeat the large armored Void enemy to receive the key.
Key Item: Soil: Sewer – Behind where the Void enemy is walking (green circle in above image). Return it to Delpha at Temporary Campsite and use Purified Soil at a Branch to increase Life Dew charges.
Normal Seal: Quagmire – To the right of the Soil pickup (blue circle in above image).
Normal Seal: Stability – Follow the main path left from where the Void enemy was and up the sets of stairs and then into another sewer area. Go up the stairs to the left then across the pipes to the other side. The seal is on the ground past the rail gun Sewer Cleaner.
Key Item: Covenant: Sewer Town – Go back up the stairs and continue through the door instead of across the pipes. In the next room on the right you can find this item. You can take this item to Merchant Kyen to add Luminous Diamond for purchase at his shop.
Key Item: Dew Essence – In the same room interact with the lit console to use the Console Key and turn on the spinning platforms in the sedimentation tanks. There is an elevator left of the console allowing you to get back down to the lowest level, but you can also drop off onto the pipe halfway to follow a path with a shortcut ladder back to the prior branch.
From the branch you can stay on the upper path to reach the tanks, and on the farther one You can then go back to the farther one drop into the far side, then climb the ladder and drop onto the pipes. This allows you to drop to the lowest level where there is a large Void enemy blocking a doorway.
Defeat it then go through the doorway, then left to find a Snail enemy. Defeat it to receive the Dew Essence.
To continue on the story path go back up the tall set up stairs to the sewer room, then down the path to the right.
Hunting Ground
The next boss is the Hunter of Bladers, who is a significant difficulty jump from anything you will have encountered prior. It’s likely you will regardless, but die to the boss once to be transported to Outer Wall Ruins – Ancient Machine Works.
Outer Wall Ruins – Ancient Machine Works
Before Shirley’s Room
NPC: Millaire – In the cell you awake in, speak with her and exhaust her dialogue. She will help you out of the cage, and will suggestion a solution after a short period of waiting. Reflect a beam from the drone using Counter Field Frame ability after she gets its attention to exit the cage. Millaire questline #3 (optional)
Normal Seal: Steel Shell – Follow the main path until you reach the cage with the stairs and the path continuing left. Follow the path up the stairs to the left to reach the platform where the drone was, and you can pick the seal up from the back right.
Normal Seal: Stone Builder – Defeat the Panic Reaper miniboss in the next area.
Normal Seal: Neutral Transformation – After climbing the second ladder after the Panic Reaper, interact with the Memory in the corner of the room.
Weapon: Steel Axes – In the next room go around the back of the central platform to pick up this weapon.
Continue to the top of the area and the door immediately right of the vending machine to find the next branch.
Shirley’s Room
Key Item: Bunny Doll Arrisa – On the bed beside the branch.
Headwear: Bandage – Purchased from Opossum’s Vending Machine outside Branch room for 3000 Crystals.
Armor: Patient’s Clothing – Purchased from Opossum’s Vending Machine outside Branch room for 6000 Crystals.
Headwear/Armor: Frame Glasses/Researcher’s Robe – In the room opposite the Branch room (left of the Vending Machine), pick up the purple item on the bed.
To exit go through the door to the right of the one with branch and interact with the hole in the wall to arrive near Outer-Wall Ruins – Slums > Temporary Campsite.
NPC: Millaire – After exiting the Rift near Shirley’s Room you can return to the Temporary Campsite and speak with Millaire who will now be there in the middle of the area. Speak with her and exhaust her dialogue. She will have 2 new spells available, and will stay at this location for the remainder of the game. Millaire questline #4
Spell: Trailblazer’s Oath – Purchase from Millaire for 15 Adaptive Fragments + 5000 Crystals
Spell: Lightning Tornado – Purchase from Millaire for Clergy’s Nucleus + 12,000 Crystals
Teleport back to Sewer Town – North > Hunting Ground where you can continue challenging the boss. If you die again you won’t be transported back to the jail, you respawn at the Hunting Ground Branch like normal.
Boss: Hunter of Bladers
Trophy/achievement 
Hunter of Bladers
Key Item: Train Pass – Obtained automatically after defeating Hunter of Bladers boss.
Headwear: Blader Huntress Mask – Obtained automatically after defeating Hunter of Bladers boss.
Underground Rift
To progress to the next area go down the hallway to the right and interact with the right.
Next up: Twilight Hill – Spirit Depths
For all other areas refer to the AI Limit Walkthrough.
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