A full walkthrough and guide for the Keeper of the South sidequest in Shin Megami Tensei V (SMT 5). Read on to figure out where to find the sidequest, how to complete it, and what rewards you can receive.

Keeper of the South Location

Zouchouten can be found on a hill east of the Fairy Village. You can get to the hill from the right side, and going up a path.

Note: This quest will only be available after completing the sidequest The Ancient Guardian.

Keeper of the South Sidequest Information

How to Complete Keeper of the South

Objectives
1	Talk to Zouchouten, who can be found on a hill east of the Fairy Village. You can get to the hill from the right side, and going up a path. Note: This quest will only be available after completing the sidequest The Ancient Guardian.
2	Accept his quest and he will immediately challenge you to a battle. Defeat Zouchouten to complete the quest. ・How to Beat Zouchouten
3	Upon defeating Zouchouten, you will be rewarded with 1 Large Glory Crystal, 70000 EXP, and 1 Zouchouten's Essence.

How to Beat Zouchouten

Recommended level: 65
Enemies	Weak	Block
Zouchouten

Debuff Zouchouten's Attacks

Zouchouten has both Tarukaja and Charge which increases its attack damage. Make sure to always debuff Zouchouten's attacks specifically, at least once during every turn in order to weaken Zouchouten after it casts its own buffs to itself. Use a skill like Tarunda to lower Zouchouten's attack by 1 rank for 3 turns.

Hit Zouchouten With Force Attacks

Zouchouten is weak to Force attacks and capitalizing on the weakness-exploit system will benefit you a lot, effectively attacking Zouchouten and securing more turns for your team all at the same time.

Zouchouten Uses Mazionga After Activating Omagatoki: Critical

Zouchouten uses a multi-target Elec attack after it taps into Magatsuhi. To counter Mazionga during Zouchouten's next turn, we recommend using Elec Dampener after Zouchouten gathers Magatsuhi.

Full Guide:
How to Beat Zouchouten

Shin Megami Tensei V Related Guides

List of Subquests and Rewards

Vengeance Subquests

Subquests
Prince of Her Dreams	In Pursuit of Knowledge
Brawny Ambitions	She Who Rules the Night
Knocking on Death's Door	Beastly Battle of Wits
Home Sweet Home	To New Horizons
Picture-Perfect Debut	Essential Research
Brawny Ambitions II	Infiltrate the Demon Feast
Tough Love	Pixie on the Case
As God Wills	A Self of My Own
Part-Time Gasser	Lighting the Way
Reclaim the Golden Stool	Liberate the Golden Stool
A Star is Born	Shinjuku Jewel Hunt
The Disgraced Bird God	The Vampire in Black
The Hunter in White	Alice's Wonderland
Devotion to Order	Heroes of Heaven and Earth
The Serpent King	The Great Adversary
Supersonic Racing	Classified Courier
Song of Nostalgia	Guide to the Lost
Rite of Resurrection	Heroes of the Celts
The Guardian of Light

List of SMTV Vengeance Subquests

Da'at: Minato

Subquests
A Preta Predicament	No Stone Unturned
Bully Breaker	Pollution Panic
The Spirit of Love	The Water Nymph
The Cursed Mermaids	The Demon of the Spring
To Cure a Curse	The Gold Dragon's Arrival
The Benevolent One	The Ultimate Omelette
Talisman Hunt	Movin' on Up
Keeper of the West	The Succession of Ra

Da'at: Shinagawa

Subquests
Chakra Drop Chomp	Those Seeking Sanctuary
Holding the Line	A Wish for a Fish
Magic from the East	Can I Keep Them?
Iced Out	Kumbhanda's Bottle
Birds of a Feather	The Tyrant of Tennozu
The Root of the Problem	A Goddess Stolen
The One I Love	The Falcon's Head
Keeper of the South

Da'at: Chiyoda

Subquests
The Path to Myojin Forest	Lighting the Way
Black Frost Strikes Back	A Sobering Standoff
Stones of Malice	One Mokoi's Trash...
He of a Hundred Hands	An Unusual Forecast
A Power Beyond Control	The Search for Oyamatsumi
Clash with the Kunitsukami	The Horn of Plenty
Roar of Hatred	Glitter in Ginza
The Angel of Destruction	The Ancient Guardian
Keeper of the East

Da'at: Taito

Subquests
On Bended Knees	Downtown Rock 'n Roll
The Egyptians' Fate	A Princess in a Pickle
In Defense of Tokyo	The Raid on Tokyo
A Need for Nectar	Abaddon's Assault
Keeper of the North	The Bull God's Lineage
An Incentive for Incense	The Destined Leader
The Holy Ring	The Sleeping Sands
The Winged Sun	Fionn's Resolve
A Universe in Peril

Empyrean

Subquests
The Seraph's Return	The Red Dragon's Invitation
The Noble Queen	The Wrathful Queen
The Compassionate Queen	A Plot Revealed

DLC Quests

DLC Subquests
A Goddess in Training	The Doctor's Last Wish
The Rage of a Queen	Return of the True Demon
Sakura Cinders of the East	Holy Will and Profane Dissent