Arknights: Endfield

The Long Feud Main Mission Guide

Last updated on: June 23, 2026 10:08 PM

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The Long Feud is the Chapter 2 Process 3 Main Mission of Arknights: Endfield 1.0. See how to unlock this quest series, its walkthrough, rewards, and quest information in this guide!

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How to Unlock The Long Feud

Complete the Way of Water Questline

Arknights Endfield - Where Danger Sleeps

The Long Feud is unlocked after completing the Where Danger Sleeps quest from The Way of Water quest line. There is no level restriction to unlock this quest line.

Where Danger Sleeps Main Mission Guide

The Long Feud Walkthrough

All The Long Feud Sub-Missions

1	Unexpected Attack • Go to Qingbo Stockade • Enter the Monitoring Station • Go Deeper Into the Monitoring Station • Scan the Area and Find the Source of the Voice • Go to the Field Logistics Depot and find Mi Fu • Follow Mi Fu to Qingbo Stockade
2	Deep in the Mire • Use the Secret Passage to Reach Qingbo Stockade • Gather Some Intel • Continue Your Way to Qingbo Stockade • Acquire Ferrium Bottles from the Crate • Shoot the Mechanism with the Jet Drone to Open a Path • Go to Qingbo Stockade • Enter Qingbo Stockade and Investigate • Defeat the Enemy Patrol • Go Deeper Into Qingbo Stockade and Rescue Tangtang • Find a Way to Rotate the Bridge • Help the Stockade Residents Escape • Go Further Into Qingbo Stockade • Shoot the Mechanism with the Jet Drone to Open a Path
3	The Flow Splits Course • Go Further Into Qingbo Stockade • Open Sluice Gate to Adjust the Water Level • Go Further Into Qingbo Stockade • Rotate the Bridge to Create a Path • Go Deeper Into Qingbo Stockade and Find Tangtang • Lower the Bridge • Defeat the Enemies • Find Tangtang • Rescue Tangtang • Catch Up to Ardashir and Ruan Yi • Talk to Tangtang and Mi Fu • Go to the Ancestral Spring
4	Surging From a Withered Spring • Talk to Tangtang • Defeat Ruan Yi • Return to the Ancestral Spring and Find Tangtang
5	A River Restless in Still Winds • Go to Qingbo Bailey and look for Tangtang • Snoop Around for Tangtang's Whereabouts • Go Near the Waterwheel • Defeat Ruan Yi's Loyalists
6	Another Wave Comes Crashing In • Go to Wuling City and Read Tangtang's Message • Go to Qingwu's Place • Take the Tangtang Certs • Enter the Residential Area • Look Around for Ruan Yi's Loyalists • Go to Fangxing Avenue • Continue Looking Around for Ruan Yi's Loyalists • Go to the Underground Canal Near the Bureau of Swordmancers • Enter the Underground Canal • Disarm the Bomb • Talk to Mi Fu
7	Ripples Spread Throughout the Flow • Meet Up with Tangtang • Scan the Place to Look for Clues • Rescue Tangtang • Chase Down Ruan Yi's Loyalists • Defeat Ruan Yi's Loyalists • Look for Clues About the Loyalists
8	Purity Reveals the Stubborn Flow • Go to the Riverbank • Go to the Hideout of Ruan Yi's Loyalists • Defeat Ruan Yi's Loyalists • Use the Control Panel and Help Tangtang Reach the Elevator • Attack the Device to Rotate the Pipes and Provide Water Power • Meet Up with Tangtang • Search the Room • Parlay With Ruan Yi's Loyalists • Defeat Ruan Yi's Loyalists Again • Go to the Ancestral Spring
9	Twas One River That Gave Us Drink • Go to Fangxing Avenue • Get Some Food for Tangtang • Go to the Main Pillar Office • Escort Tangtang Back to Qingbo Stockade

The Long Feud Rewards

The Long Feud Questline Rewards

Quest	Rewards
Unexpected Attack	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x2 Arms INSP Set x2 T-Creds x4000 Operational EXP x300
Deep in the Mire	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x3 Arms INSP Set x2 T-Creds x14000 Operational EXP x400
The Flow Splits Course	Origeometry x3 Advanced Cognitive Carrier x2 Protohedron x5 Arms INSP Set x3 T-Creds x12000 Operational EXP x600
Surging From a Withering Spring	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x2 Arms INSP Set x2 T-Creds x4000 Operational EXP x300
A River Restless in Still Winds	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x2 Arms INSP Set x2 T-Creds x4000 Operational EXP x300
Another Wave Comes Crashing In	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x3 Arms INSP Set x3 T-Creds x6000 Operational EXP x300
Ripples Spread Throughout the Flow	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x3 Arms INSP Set x2 T-Creds x6000 Operational EXP x300
Purity Reveals the Stubborn Flow	Origeometry x2 Advanced Cognitive Carrier x1 Protohedron x3 Arms INSP Set x2 T-Creds x10000 Operational EXP x400
Twas One River That Gave Us Drink	Origeometry x1 Advanced Cognitive Carrier x1 Protohedron x2 Arms INSP Set x1 T-Creds x4000 Operational EXP x300

The Long Feud Information

The Long Feud Questline Details

Mission Type	Main Mission
Location	Qingbo Stockade, Wuling

The Long Feud is Chapter 2 - Process 3 of Arknights: Endfield's main story. The Main Mission takes place in Qingbo Stockade in Wuling. The first quest will be available after completing the Where Danger Sleeps mission.

All Main Missions

Arknights: Endfield Related Guides

List of All Main Missions

All Main Chapters and Processes

Prologue
Process: Cold Start	Process: Awakening
Chapter I: Process I - The Broken Lands
Break the Siege	Valley Reboot
Rally and Unite	Westward into the Vale
Secure Sanctuary	Building an Outpost
Through the Haze	Fort Showdown
Chapter I: Process II - The Turbid Heavens
Paving the Way	Work Preparation
Maintenance Progress	-
Chapter I: Process III - Path of Ascension
The Mission Continues	Cross the Science Park
Park Way Party	Walk in the Park
Mystery in the Building	Down the Hill
Shattered Veins	Lodespring Crossing
Cradle of Ages	Eve of Battle
Chapter I: Process IV - Smoking Embers
Entering the Endgame	Counterstrike Brewing
Scaldings of Utjug	Frontline Rush
Undying Cinders	Temporary Peace
Mysterious Signal	Conference of the Four
Work Preparation	-
Chapter II: Process I - Lost in the Marsh
Arrival at Wuling	Stumbling Into Qingbo Stockade
Destination Wuling	-
Chapter II: Process II - The Way of Water
A Glance of Astonishment	A Breeze Away
Of Grace and Gentle Might	The Surging Tide
Where Danger Sleeps	-
Chapter II: Process III - The Long Feud
Unexpected Attack	Deep in the Mire
The Flow Splits Course	Surging From a Withered Spring
A River Restless in Still Winds	Another Wave Comes Crashing In
Ripples Spread Throughout the Flow	Purity Reveals the Stubborn Stone
Twas One River That Gave Us Drink	-
Chapter II: Process IV - Tales of Old
Like Fire and Ice	A Lethal Invitation
Phantom Wisps	Awaiting Thine Coming
Free Will	-
Chapter II: Process V - Wrothful Tide
Thus Rise the Wave and Wind	Tremors of the Crashing Tide
Where Friendship Was Made	-
Chapter II: Process VI - Ponderous Load
A Breach Starts with a Crack	Patience Makes Greatness
Kindred Souls Who Share a Vision	-
Chapter II: Process VII - Ruins in the Miasma
Bravely Breach the Hostile Winds	Thus Begins the Homeward March
A Past Shared by the Swordmancers	Same Old Faces in a Place Transformed
Warily Returns the Wandering Vigile	Finally Breaks the Hanging Clouds
Homecoming	Stubbornly Lingers the Setting Sun
Chapter II: Process VIII - Sanctuary From the Rift
Enter the Painted World	Learn of Rise and Fall
Witness the Game Unfold	See Through the Self
Paint With Fresh Ink	-

All Main Missions

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Arknights: Endfield Walkthrough & Guides Wiki

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The Long Feud Main Mission Guide

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Complete the Way of Water Questline

The Long Feud Walkthrough

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The Long Feud Information

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