The Serpent King Subquest Walkthrough and Guide

A full walkthrough and guide for The Serpent King subquest in Shin Megami Tensei V: Vengeance (SMT V). Read on to figure out where to find the subquest, how to complete it, and what rewards you can receive.

The Serpent King Location - SMT V

Map and Overworld Location

Map Image	Overworld Image
Shinjuku, 1st Block	Mastema

Begin The Serpent King subquest by heading towards the Dragon Cave in Shinjuku, 1st Block and talking with Mastema to accept the subquest.

Progress the Story Until You Reach Empyream

You will first need to progress the main storyline until you reach Empyrean, the last area in the game. After you've defeated the boss, The Serpent King subquest will be unlocked.

Empyrean Story Walkthrough

The Serpent King Subquest Information

How to Complete The Serpent King

Unlock the Serpent King Subquest by Reaching Empyrean

After you've reached Empyrean in the main storyline, head towards Shinjuku, 1st Block and talk with Mastema to start the Serpent King subquest.

Defeat Samael in the Tokyo Metropolitan Government Building

Map Image	Overworld Image
Tokyo Metropolitan Government Building	Satan (Overworld Location)

After you've accepted the subquest, head towards the Tokyo Metropolitan Government Building and approach Samael to begin the battle.

Do note that Samael is at level 88, so your party should be optimized in terms of items, skills, and demons recruited.

Win the Boss Battle to Unlock Samael's Fusion

Defeat Samael so that you could unlock his Special Fusion. If the option for his Special Fusion does not appear, it may be caused by the lack of demon components in your compendium.

Special Fusion List

Samael Boss Battle Strategy

Boss Fight: Samael
Recommended Level			Be at Level 88 or higher
Weaknesses and Resistances
-	-	Weak	-	-	Null	Null

Inherit Abyssal Mask

Samael will unleash all sorts of attacks that deal status ailments to your party. It is recommended that you have your character inherit Abyssal Mask so that you'll reduce the chances of acquiring a status ailment.

Demons With Abyssal Mask

Remove Status Ailments Immediately

If you've acquired status ailments from Samael throughout your battle, his innate skill will enhance his attacks to a greater degree and cause you to lose much of your HP.

When struck with a status ailment, it is best to recover from it using Me Patra, Amrita Shower, or Amrita Soda so that you'll avoid being incapacitated in battle.

List of Recovery Skills

Prioritize Defeating Samael's Minions

Demon Minions	Weakness	Resist	Null
Naamah
Eistheth
Agrat
Lilith

During the first round and the time that follows after he casts Magatsuhi, Samael will summon Naamah, Eisheth, Agrat, and Lilith in that order.

If there are two or more of his minions in the field, then they will acquire buffs from each other that are supplemented by their innate skills. Prevent this by prioritizing the defeat of each minion summoned in battle.

Samael's Minions

Naamah	Eisheth
Agrat	Lilith

Recruit Strong Demons During the Battle

The battle will be long and difficult at best, given Samael's abundant pool of HP. It is recommended that you recruit demons who are up to the task of fighting with you against Samael.

Recommended Demons to Recruit

Recommended Demons	Recruitment Rationale
Gabriel	Special Fusion Raphael x Throne ・Specializes in Ice Skills ・High offensive output with High Ice Pleroma
Arioch	Special Fusion Seth x Cybele x Anzu ・Specializes in Ice Skills ・High offensive output with High Ice Pleroma
Raphael	Special Fusion Seth x Cybele x Anzu ・Access to Me Patra
Zeus	Special Fusion Demeter x Thunderbird x Dionysus ・Specializes in Elec Skills ・Ignores affinity resistance with Keraunos
Odin	Special Fusion Thor x Valkyrie x Loki ・Specializes in Physical Attacks ・Ignores affinity resistance with Gungnir
Cleopatra	Special Fusion Titania x Isis x Lamia x Narcissus ・Specializes in Ice Skills ・Great Buff with Luster Candy
Demeter	Special Fusion Lakshmi x Aquans ・Immune to most status ailmets ・Access to High Heal Pleroma ・Thesmophoria buffs ally attacks
Tao	Joins the Party After Reaching Taito Ward ・Access to Light of Order

List of Demons

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

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