Wuthering Waves Final Reverberation Quest Guide
Wuthering Waves 3.0 gave us a lot of great content, but it also gave us something else entirely: confusion. If you’ve ever stared at your quest log wondering why Final Reverberation just refuses to progress, you’re not alone. For a while, this quest (and a few others) felt straight-up cursed, with vague objectives, missing dialogue, and NPCs that just… wouldn’t cooperate.
The good news is that Final Reverberation is absolutely completable now, and most of the issues players ran into either had hidden triggers or were quietly fixed in later patches. This guide walks you through how the Final Reverberation questline works, how to unlock it properly, what to do if it looks bugged, and how players actually managed to get past the infamous I.R.I.S. interaction.
How to Complete Final Reverberation 1 & 2

Before you even see Final Reverberation I, it’s important to know that Wuthering Waves absolutely loves conditional quest triggers. This quest does not reliably appear just because you finished the main story or hit 100% exploration. Plenty of players had everything cleared and still couldn’t get it to show up, so if you’re stuck, you’re definitely not alone.
Both Final Reverberation I and II are very short quests once they finally unlock. They mainly involve traveling to specific locations, using Utility: Sensor, interacting with discarded logs, and delivering medicine supplies to Lias in Fangspire Chasm. The objectives are straightforward, and the game marks the locations clearly on the map once the quests are active.
Completing Final Reverberation 1 & Medicine Supplies
For Final Reverberation I, the discarded log is located between Itching Plains and Startorch Academy, but not easy to miss even if you’re not actively looking for it. You’ll also have to wait for days to progress into the log.
As for the Medicine Supplies bit, you can find and deliver the medicine supplies to Lias in Fangspire Chasm.
Completing Final Reverberation 2
Final Reverberation II sends you to another discarded log found in the southwest area of Fangspire Chasm. After completing the first quest, progression flows directly into the second with no extra steps required.
If Final Reverberation doesn’t appear at all, your best bet is clearing as many remaining side quests and events as possible. Version 3.0 in particular locks certain quests behind unrelated content. Side quests like Urban Legend: The Anonymous Inviter and Hidden Childhood have been confirmed to block progression for some players until they’re completed, even if everything else looks finished.
Final Reverberation II and the I.R.I.S. Problem

This is where most players got stuck. Final Reverberation II updates your objective to “Return to I.R.I.S.”, which sounds simple enough. Except when you actually talk to her, there’s no quest-related dialogue option, and nothing progresses.
For a while, this step was genuinely bugged for many players. The issue appeared to be tied to handing over treasure parts, which simply wouldn’t trigger the next interaction. Some players found that completing other quests randomly fixed it, while others were completely locked out even after finishing everything else in the game.
Eventually, a small patch released on December 29 quietly fixed this issue, and players were finally able to complete the quest normally. If you’re playing on the latest version, this step should now work as intended.
Workarounds If the Quest Still Feels Bugged

Before the fix, players got creative, and some of those tricks are still useful if your quest behaves strangely.
One confirmed workaround involved teleporting above I.R.I.S. and using a teleport drop item to descend directly onto her location. After doing this, some players reported that the interaction suddenly worked and the quest progressed as normal.
Another important thing to note is that Wuthering Waves sometimes requires specific positioning or reloads to refresh NPC states. If dialogue doesn’t appear, teleporting away, reloading the area, or approaching from a different angle can genuinely make a difference.
If nothing works, reporting the issue to Kuro Games is still recommended, as multiple quests in 3.0 had soft-lock issues depending on player progression order.
Final Thoughts
Final Reverberation is one of those quests that perfectly captures both the mystery and the occasional frustration of Wuthering Waves’ quest design.
Between hidden triggers, previously bugged steps, and NPC interactions that don’t always behave the way you expect, it’s no surprise so many players thought their save was broken. Thankfully, with the right progression order and the fixes rolled out since 3.0, the quest is now fully completable and well worth seeing through to the end.
And if finishing this quest sends you straight back into exploration mode around Lahai Roi, you’ll probably run into route construction sooner rather than later. When that happens, check out our guide on How to Get Compressed Bedrock in Wuthering Waves, which breaks down where to farm it, which enemies drop it, and how to grind it efficiently without burning yourself out. Think of it as the practical follow-up after surviving one of the game’s most confusing questlines.
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