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Genshin Impact Wiki

The only hope for Watatsumi Island's salvation lies within this all-new, secret-shrouded area — Enkanomiya.
Head into Enkanomiya and complete the trials of valor that await there.

Enkanomiya (Japanese: 淵下宮 "Palace Below the Depths"), originally known as Byakuyakoku (Japanese: 白夜国 "Land of the White Night / Midnight Sun[1]") and Tokoyokoku (Japanese: 常世国 "Eternal Country") is an area in Inazuma.

It can be entered via a deep pool east of Sangonomiya Shrine, and legend has it that the Watatsumi people originated from here.[2] Although Enkanomiya is located under Watatsumi Island, it is still part of Teyvat, though somewhat disconnected from it.[1]

To enter Enkanomiya, the seals on the five Goshou Rocks need to be broken for the pearls located within the shrines for the Key of the Moon-Bathed Deep, which would allow entry to Enkanomiya, provided that the spirit veins connecting Enkanomiya and Watatsumi Island are flowing smoothly and a person whose heart is "as clear as water". According to legend, the key was forged from Orobashi's blood.[3]

Enkanomiya Unlock Criteria:


Name Description Image
Dainichi Mikoshi The central area of Enkanomiya, named after Enkanomiya's artificial sun that was created by Aberaku no Mikoto in order to protect Byakuyakoku from the Dragonheir of the Depths. Dainichi Mikoshi.png
Evernight Temple Located east of Dainichi Mikoshi. Evernight Temple.png
The Narrows Located northwest of Dainichi Mikoshi. The Narrows.png
The Serpent's Bowels The pathway towards the main areas of Enkanomiya. The Serpent's Bowels.png
The Serpent's Heart Located south of Dainichi Mikoshi. The Serpent's Heart.png
Vishap Research Lab Located north of Dainichi Mikoshi. This area is not marked on the map. Vishap Research Lab.png
Yachimatahiko's Locus The northernmost area of Enkanomiya. It is initially hidden from the map and can be unlocked and shown on the map by starting the Erebos' Secret questline. Yachimatahiko's Locus.png
Yachimatahime's Locus The northeasternmost area of Enkanomiya. It is initially hidden from the map and can be unlocked and shown on the map by starting the Erebos' Secret questline. Yachimatahime's Locus.png
Kunado's Locus The southernmost area of Enkanomiya. It is initially hidden from the map and can be unlocked and shown on the map by starting the Erebos' Secret questline. Kunado's Locus.png

Points of Interest

Name Description Image
Dragonbone Flower A giant flower in The Serpent's Bowels. In the world quest Lotus Eater, the Traveler waters this flower using the Waters of Lethe to obtain the Dragonbone Orb. Dragonbone Flower.png
Inscribed Map, The Narrows Interacting with the map during the A Glimpse Into the Pale Night unlocks the Map of Enkanomiya. Inscribed Map.png
The Altar at The Serpent's Heart Used to enter in Altar Patterns to obtain rewards or advance a quest. World Quest The Heart of Ouroboros.png
The Emanant Skylight Found in The Narrows, Evernight Temple, and The Serpent's Heart. Ghostfish here can be used to will lift the player up towards a Time Tunnel which will take them to one of the three locuses. The Emanant Skylight.png
Tokoyo Reisen, Evernight Temple The Traveler obtains the Waters of Lethe from here in the world quest Lotus Eater. Tokoyo Reisen.png



21 Quests match the category selection:


  • Altar Patterns: these patterns consist of the five unique Key Sigil types in a circle along with a number associated with each type. This pattern is entered into The Altar at The Serpent's Heart to achieve an objective.
  • Key Sigil Seals: mechanisms that will appear during Evernight that can be unlocked by using Key Sigils in order to unlock a chest or to advance a World Quest.
  • Daises of Day and Night: mechanisms that appear different in Whitenight and Evernight. Get close to them to operate them. However, their states will reset when switching between Evernight and Whitenight.
  • Of Sun and Moon: The Dainichi Mikoshi is a beam of light in the center of Enkanomiya that can be turned on and off, effectively changing the state of Enkanomiya between Whitenight and Evernight. This can be done by activating the appropriate mechanisms throughout Enkanomiya. Walls and mechanisms hidden during Whitenight are visible during Evernight, and vice versa.
  • Ghostfish: schools of fish in the air found in Enkanomiya. They allow the player to continuously glide while in the group. They are notably found around The Emanant Skylights.
  • Phase Gate: a mechanism that transports the player to a different location.
  • Places of Essence Worship: these mechanisms contain the power of Whitenight and Evernight. They allow the player to utilize a mechanism that can only be used in Whitenight while in Evernight, and vice-versa.
  • Shield-Lights of Tokoyo: barriers in Enkanomiya that are present during Whitenight are dispelled during Evernight.
  • Smashed Stone: stone-like crates that contain Mora.
  • Sunfire Phantasms: distortions visible in in the air in Enkanomiya. Switching between Whitenight and Evernight can cause these illusions to disperse or show themselves. These typically obscure other mechanisms, such as Altar Patterns.
  • Triangular Mechanisms: attacks can be used to activate them. If damaged, switch to Evernight to fix them.


Local Specialties

Hidden Exploration Objectives

5 Hidden Exploration Objectives match the category selection:


Shades of Tokoyo

Shades of Tokoyo (also known as "Sinshades") are spectral NPCs that appear throughout Enkanomiya during Evernight.


Long ago, the Primordial One and its Shining Shades defeated the Seven Sovereigns and began the creation of heaven and earth for humanity's sake.[4] A single, unified human civilization spanned the whole world, which the people of Enkanomiya were part of.[5] But later, an individual known as the Second Who Came appeared and a war broke out between the Primordial One and the Second Who Came which destroyed the heavens and earth. As a result of this disaster, Enkanomiya fell into the ocean and was severed from the surface world.[4]

Years of Darkness

When they fell into the ocean, they met against the Dragonheir of the Depths (now known as Bathysmal Vishaps) that ruled this place. They learned that the Dragonheirs loved the dark and shunned the light,[6] so they used thousands of lanterns to ward them off.[6] However, this was not particularly effective so they prayed and lamented but the Primordial One and its Shining Shades did not hear their pleas. Only on Third Year of Darkness did Istaroth, one of the four Shining Shades and the "Ruler of Time", hear their lamentations and she helped them by giving enough wisdom to Aberaku no Mikoto so that he could create the Dainichi Mikoshi, which was then known as the "Helios". As result, in the Year of Blindness, Aberaku's wisdom had been awakened and the people began constructing the Helios under his command.

Years of Sun and Moon

The year the Helios was completed was the First Year of Sun and Moon. With the light of the Dainichi Mikoshi, they were able to drive away the Dragonheirs and survive.[4] Some great Watatsumi houses such as the Yuna Clan trace back to those days.[7] In the Second Year of Sun and Moon, the people of Byakuyakoku sought for a way back to the surface, thinking the war has surely ended by now, but they were blocked by unknown means. They interpreted this as a ban from the Primordial One and assumed this meant the Second Who Came was defeated. Around this time, a cabal of corrupt nobles[8] manipulated the people of Byakuyakoku into worshipping the Dainichi Mikoshi as a god and installed a puppet ruler, known as the Sunchild. Aberaku opposed the corrupt nobles, so the Sunchild accused him of high treason and imprisoned him. On the Tenth Year of Sun and Moon, Aberaku had died and his clothes and body were enshrined in various places in acknowledgement of his achievements for creating the Helios.[9] Others, such as Spartacus, also attempted to oppose the rule of the Sunchildren but failed and were imprisoned. The Years of Sun and Moon continued under the rule of the Sunchildren until the arrival of Orobashi.[4]

At some point, the people of Enkanomiya built the Towers of the Three Realms at the borders of Byakuyakoku.[10] Because Byakuyakoku was on the border between three different realms, the Human Realm, the Light Realm, and the Void Realm, they built these towers to stabilize the tendencies of Byakuyakoku and maintain harmony between the three realms. Since these towers are so important, they are hidden using secret arts and can only be summoned by shrine maidens, such as Eboshi, and the Vassals of Watatsumi.[10] The ancient names of these towers have been long forgotten, but islands they are located on are now called Yachimatahiko's Locus, Yachimatahime's Locus, and Kunado's Locus.

During this time, the people of Enkanomiya observed some special phenomena — the mirages and the Sinshades — which they indiscriminately referred to as "Eidolons." It was not until the arrival of Orobashi that they were able to understand them and they respectively named them Sunfire Phantasms and Ghostfire Phantasms.[11]

Arrival of Orobashi

After being defeated in the Archon War and fleeing the continent of Teyvat,[12] the ancient god later known as Orobashi no Mikoto appeared in Byakuyakoku.[13] A young child of Enkanomiya found the god in a cave and asked Orobashi to become their god. Taking pity on them, Orobashi overthrew the Sunchildren and defeated the Dragonheirs and sealed them away. Orobashi then used the corals growing off its body to create a path back to the surface world and create Watatsumi Island.[14] The people it saved dubbed this new land "Sangonomiya" and in turn began referring to Byakuyakoku as "Enkanomiya". They also began worshipping this god as their "Orobashi no Mikoto" and "Watatsumi Omikami".[2]

In taking in the Enkanomiya people, Orobashi came upon the book Before Sun and Moon, which recorded a history of the world that Celestia wanted concealed, and he learned of a prophecy that foretells the rebirth of the Dragon of Water, one of the Seven Sovereigns, in human form. Orobashi placed a ban upon the book and began personally leading experiments on the Dragonheirs to better understand their abilities as well as prevent the return of the Dragon of Water.[15]

On the last day of Enkanomiya before the people relocated above the sea, envoys from Khaenri'ah along with a Ruin Guard came and stole the book Before Sun and Moon. Antigonus fought them and prevented the loss of the book, but was also critically injured.[16]

Present Time

Every few thousand of years, Enkanomiya begins to bleach Watatsumi Island's soil, which would endanger the island and slowly turn it into desert if not dealt with accordingly, along with the Dragonheir of the Depths or some other monster that may have resided inside and waiting to escape to the surface. In order to stop this from happening, the people of Watatsumi must conduct a ritual known as the Watatsumi Goryou Matsuri, which involves using a Jade Coral Branch broke off from the depths of Enkanomiya.

Recently, Tsuyuko requested the Traveler to remove the five seals to obtain the Key of the Moon-Bathed Deep while sending a request to Sangonomiya Kokomi to authorize entry into Enkanomiya to deal with the problem, who eventually gave them permission to enter and retrieve the Bloodbranch Coral to be used in the ritual. During the Traveler's trip into Enkanomiya, they discovered the ancient Bathysmal Vishaps along with numerous hilichurls and traces of the Abyss Order, having been sent by "Enjou" to search for the book "Before Sun and Moon" hidden inside to prove that the gods and Celestia came from outside Teyvat.

Sometime after handing the Bloodbranch Coral over, the Traveler learns from Kokomi that the ritual had a complication. Upon investigating, they find an everlasting darkness surrounding Enkanomiya and a strange shrine maiden named Tsumi who initially helps the Traveler. The Traveler finds out that Enjou was causing the darkness and was working together with the Tsumi, who may be one of the "Vishap-people", which are vishaps that evolved to imitate humans so they can infiltrate human society. The Traveler repels the darkness and convinces Tsumi not to destroy the Dainichi Mikoshi, although Tsumi says the vishaps will still be back. Returning to Sangonomiya Shrine, Kokomi denies the existence of Vishap-people and says Tsumi is likely the last Vassal of Watatsumi, human/snake hybrid familiars of Orobashi. Now that she knows how the Bloodbranch Coral works, Kokomi decides to find a different method of stopping the soil bleaching as to no longer disturb the vishaps.[17]


The Watatsumi people have continued practicing the traditions of Enkanomiya. One such tradition is fortune-telling using "Deep Sea Spiritherbs", a type of plant transplanted on Watatsumi Island from Enkanomiya.[18]


  • A midnight sun or white night (Japanese: 白夜 byakuya), used in the location's original name Byakuyakoku, refers to a natural phenomenon in which the sun remains visible during nighttime.
    • This implies that the area was named Byakuyakoku after the creation of the Dainichi Mikoshi.
  • Enkanomiya may be based on the lost city of Atlantis.
  • Based on the architecture and names of the people here, Enkanomiya may be inspired by Greece.


No. Soundtrack Name Album Played In
44 A Dim Echo of the Past Islands of the Lost and Forgotten Enkanomiya
38 A Glimpse of Old Dreams Islands of the Lost and Forgotten Enkanomiya
48 At Dawn and Dusk Islands of the Lost and Forgotten Enkanomiya
40 Chthonian Voices Islands of the Lost and Forgotten Enkanomiya
46 Drift Along the Lethe Islands of the Lost and Forgotten Enkanomiya
36 Drops of Time Islands of the Lost and Forgotten Enkanomiya
37 Evanescent Moments Islands of the Lost and Forgotten Enkanomiya
52 Hope or Nostalgia Islands of the Lost and Forgotten Enkanomiya
45 In the Brink of Time Islands of the Lost and Forgotten Enkanomiya
39 Like in a Haze Islands of the Lost and Forgotten Enkanomiya
47 Now and Forevermore Islands of the Lost and Forgotten Enkanomiya
31 Pathway to the Hidden Isles Islands of the Lost and Forgotten The Serpent's Bowels
32 Sink Into Oblivion Islands of the Lost and Forgotten Enkanomiya
42 Soft Moans of the Remains Islands of the Lost and Forgotten Enkanomiya
49 Tales of Woe Islands of the Lost and Forgotten Enkanomiya
50 Tearless Souls of Byakuya Islands of the Lost and Forgotten Enkanomiya
33 The Abysmal Region Islands of the Lost and Forgotten Enkanomiya
41 The Gaze of the Ancients Islands of the Lost and Forgotten Enkanomiya
34 The Glooming Light Islands of the Lost and Forgotten Enkanomiya
43 The Long Dark Night Islands of the Lost and Forgotten Enkanomiya
51 The Realm of Tokoyo Islands of the Lost and Forgotten Enkanomiya
35 The Shallow Melancholy Islands of the Lost and Forgotten Enkanomiya

Other Languages

LanguageOfficial NameLiteral Meaning
Palace Below the Depths
Palace Below the Depths
Palace Below the Depths

Change History

Released in Version 2.4
Version 2.4
  • Enkanomiya was released.
  • The English translation for Enkanomiya's original name was revised from Byakuya no Kuni to Byakuyakoku.

Version 2.1


  1. 1.0 1.1 YouTube: Version 2.4 Special Program (Timestamp: 25m 22s)
  2. 2.0 2.1 World Quest, The Moon-Bathed Deep: The Moon-Bathed Deep
  3. World Quest, The Moon-Bathed Deep: "Heart of Watatsumi"
  4. 4.0 4.1 4.2 4.3 Book: The Byakuyakoku Collection, Vol. 2
  5. World Quest, From Dusk to Dawn in Byakuyakoku: The Subterranean Trials of Drake and Serpent
  6. 6.0 6.1 Book: The Byakuyakoku Collection, Vol. 1
  7. Book: The Life of Mouun the Shrine Maiden
  8. World Quest: Lotus Eater
  9. World Quest: Hyperion's Dirge
  10. 10.0 10.1 Book: The Byakuyakoku Collection, Vol. 3
  11. Book: The Byakuyakoku Collection, Vol. 5
  12. Book: A Preliminary Study of Sangonomiya Folk Belief
  13. Weapon Ascension Material: Jade Branch of a Distant Sea
  14. Book: Sangonomiya Chronicles
  15. Book: The Byakuyakoku Collection, Vol. 4
  16. World Quest: Antigonus
  17. Event Three Realms Gateway Offering Quest, Aphotic Diffusal: Three Realms Gateway Offering: Aftermath
  18. World Quest: Divine Plant of the Depths
  19. Map, Label: Enkanomiya (Japanese)