Originally released in 2020, Genshin Impact has been continuously packed with new quests to keep players coming back to the insanely popular free-to-play game. As part of the Version 2.4 release in January 2022, miHoYo added the Erebos' Secret World quest series. This series contains four quests that give players rewards including Hero's Wit, Mystic Enhancement Ore and more. Unlocking this quest series isn't immediately intuitive, though, requiring players to do extra work to find these quests.
How to Get Erebos' Secret World Quest
In order to unlock Erebos' Secret World quest series in Genshin Impact, players will first have to complete the "From Dusk to Dawn in Byakuyakoku" quest. Completing that quest will require players to give the Bloodbranch Coral to Tsuyuko, who can be found in Inazuma.
To then start Erebos' quests, players travel through Enkanomiya to look for Eboshi. She is a shade, which means she looks like a transparent figure that is shaped like a human. Once you start talking to her, assuming you've completed the above steps, you should be on track to begin the quest series. From there, follow all the given instructions in the four quests and collect your rewards!