Hyperion Dirge is a new world mission available in Enkanomiya in Genshin Impact version 2.4, available after unlocking Enkanomiya's Evernight and Whitenight feature. Before starting this search, be sure to set the time of day to “Evernight”.
Teleport to the waypoint located in the middle of Dainichi Mikoshi and drop down from behind the building. You'll come across a recess in the building guarded by a pair of fire torches and Ruin Guards. Light the torches and defeat the Ruin Guards and a small entrance will appear in the wall.
Enter this hole and you will see a spirit in front of three altars. This spirit is called Aberaku and it instructs you to find objects that contain his thoughts. These items are found throughout Enkanomiya, one in The Narrows, The Evernight Temple, and The Serpent's Heart.
The Narrows (Restricted Request)
Head to this location in The Narrows. Here you will see a group of Key Sigils. Unlock all key seals. Aberaku will appear in front of you. Talk to him to start a timed challenge where you have to defeat three Primordial Bathysmal Vishap in 30 seconds.
The Serpent's Heart (Serpent's Heart Inquiry)
The next submission is to the Heart of the Serpent. To unlock it, go to this location in The Serpent's Heart. You will need to activate five seals again to unlock a submission. You will need to defeat some Abyss Wizards here to complete the mission.
The Temple of Night (Temple Inquiry)
The last submission is at the Temple of the Night, which is located here. Like the last two times, you'll need an assortment of key seals to unlock submission. Complete some Rockhounds and Rockhound Whelps to complete the mission.
Now that you have collected all three offerings, you can return to Aberaku at Dainichi Mikoshi. Place offerings on the altars, talk to Aberaku, and a phase portal will appear. Take him to a hidden room, where you will complete the mission after one last chat with Aberaku.
