A full walkthrough and guide for the The Winged Sun 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.

The Winged Sun Location

The quest-giver is Amon, who is located on an elevated highway near the Ueno leyline fount. You can get up to where he is by getting onto the highway from the northeast.

The Winged Sun Sidequest Information

How to Complete The Winged Sun

Objectives
1	Talk to Amon on the elevated highway north of Ueno and accept his quest to retrieve the Winged Sun Crest from Asura and Mithras.
2	View Full Map Image You will find Asura and Mithras in the same area you fought Ishtar. Teleport to the Tokyo Station leyline fount and head south to the objective marker.
3	Asura and Mithras will appear and engage with you in battle. Defeat Asura and Mithras to retrieve the Winged Sun Crest. ・How to Beat Asura and Mithras
4	After defeating Asura and Mithras, return to Amon and give him the Winged Sun Crest. Amon will give you 3 dialogue options. The outcome will be the same no matter which option you choose. Amon will then fight you. Defeat Amon to end the quest. ・How to Beat Amon
5	After defeating Amon, Khonsu will arrive and take the Winged Sun Crest away from you. Upon completing the quest, you will receive the Tyrant Talisman and 120000 EXP. The demons Fury Asura, Tyrant Mithras, and Tyrant Amon will be unlocked for fusion.

How to Beat Asura and Mithras

Recommended level: 71
Enemies	Weak	Block	Resist	Reflect	Absorb
Asura					-
Mithras			-	-

Use Ice and Avoid Using Fire and Light

Fortunately, both Asura and Mithras share the same elemental weakness. Hit them with Ice attacks like Mabufudyne or Mabufubarion to deal damage to both bosses and extend your turn.

Don't Rely on Buffs and Debuffs

Asura has access to Dekunda and Mithras has access to Dekaja so any buffs and debuffs can be quickly countered. With that in mind, it's usually better to just spend your MP on Ice-type moves instead.

Cover Party Weaknesses With Passive Skills

Most demons that naturally learn Mabufudyne, Bufubarion, or Mabufubarion are weak to fire type attacks, which both Asura and Mithras can use. To avoid your Ice-type attackers from being hit with their elemental weakness, teach them a passive skill to null their weakness.

Full Guide:
How to Beat Asura and Mithras

How to Beat Amon

Recommended level: 73
Enemies	Weak	Resist	Absorb
Amon

Use Bufubarion

Since Amon has no allies, using Bufubarion is highly recommended as it is the most powerful single-target Ice skill in the game. Use this skill as often as possible to extend your turn and deal more damage to the boss.

Drain or Block Fire and Physical Damage

Since Amon's special skill Megido Flame pierces through affinities, prioritize nulling or draining Physical damage instead. Still, it's important to make sure that none of your party members are weak to Fire damage to ensure that Amon's turn will not extend by hitting any party member's weak point.

Use Amrita Sodas or Amrita Showers to Heal Confusion

If Amon casts Tentarafoo and successfully inflicts Confusion on one or more party members, be sure to have Amrita Sodas and Amrita Showers to recover. Alternatively, you can also teach your healer Me Patra which you can obtain from the essence of Anzu.

Full Guide:
How to Beat Amon

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