The Still Water's Flow
Completing this quest unlocks a new area with a separate map
Once you enter, the next quest will automatically begin
From Dusk to Dawn in Byakuyakoku
This is the main quest associated with Enkanomiya. Try to focus on completing this quest before going too deep into the exploration
The lore in Enkanomiya, while more disconnected from the Teyvat we currently know, is very important for an early understanding of the past and origins of Teyvat. Don't sleep on this lore!
The World Quests after this one are all deeply intertwined with exploration
Collection of Dragons and Snakes
Start this quest by talking to the ghost in the library in the Narrows (where you first met Enjou) during Evernight
You will not be able to complete this quest right now, but it's best to start it before other quests so that you have an idea of what you're looking for in this place
Talk to the ghost again for some hints. One of the books is not in Enkanomiya!
The following World Quests are all associated with obtaining books for Ema:
Antigonus
Date's Challenge
Tricolor File
This island quest is on an island not visible on the map. Try to find a way there...
The last book is not connected to a quest. Look for some symbols somewhere within the Dainichi Mikoshi, and try to figure out what they mean. Some exploration will be needed for this one
Hyperion's Dirge
You may come across this quest while exploring, or you can start it by talking to a ghost somewhere beneath the Dainichi Mikoshi
Completing the quest gives you a decent bit of lore
The Phaethon's Syrtos
This quest also requires a decent bit of exploration, so it's best to start it early
To start, you need to talk to a ghost after dispelling a barrier a bit west of the southernmost waypoint in Evernight Temple
Erebos' Secret
Start this quest by talking to the ghost just east of the westernmost waypoint in the Serpent's Heart
This quest unlocks the last few areas of the Enkanomiya map
Lore Reading Time
Even if you've been skipping most books up until now, this is one thing that you absolutely need to read. The lore in this book completely revolutionized the community's understanding of Teyvat.
The collection is called "The Byakuyakoku Collection", and is obtained upon completing Collection of Dragons and Snakes and entering the mirror. All five books have important information in them, but Volume 2 is by far the most important: "Before Sun and Moon". This is the same book that Enjou was looking for and that Orobashi was sentenced to death for reading.
Event: Aphotic Diffusal
Version 2.5 Flagship Event
This concludes our time in Enkanomiya, it's time to finish up the main Inazuma storyline!
Imperatrix Umbrosa Chapter: Act II - Transient Dreams
Raiden Shogun/Ei's 2nd Story Quest
Note that although there were events that took place outside of Inazuma before this quest released, the Traveler has canonically been stuck in Inazuma this whole time, and so I've moved all events that happen outside of Inazuma to after this quest
This quest serves as the complete ending to the Inazuma storyline, and absolutely should be completed before moving on