The Stellarwave Melody rod starts life restricted, which caps what it can do until you clear one final quest. That quest is called Final Convergence, and finishing it swaps the locked rod for the full version with infinite weight and a zodiac-matching fishing mechanic. The work splits into three parts, and each one has to be done exactly as described before the reward triggers.
Quick answer: Catch one Sparkling Aurora Isonade, activate all five telescopes, then catch the 12 listed fish with a cosmic mutation (Nova, Umbra, Celestial, or Aurora) on each. Return to the quest NPC to receive the unrestricted rod.
Final Convergence requirements
Three objectives make up the quest. You can chip away at them in any order, but all three must be complete at the same time when you turn in.
| Objective | What it needs |
|---|---|
| Sparkling Aurora Isonade | One catch with the correct fish and mutation combo |
| Astral Anomalies | All five telescopes switched on |
| Cosmic Mutation Fish | 12 specific fish, each carrying one cosmic mutation |
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Activate all five telescopes (Astral Anomalies)
Catch 12 fish with a cosmic mutation
This is the longest part. You need each of the 12 fish below, and every single catch has to carry at least one cosmic mutation. The qualifying mutations are Nova, Umbra, Celestial, and Aurora. Only one is required per fish, so a Lionfish with Nova is fine and you do not need all four on the same catch.
| Required fish | Mutation needed (any one) |
|---|---|
| Boreal Mana War | Nova, Umbra, Celestial, or Aurora |
| Goliath Siffer | Nova, Umbra, Celestial, or Aurora |
| Shimmering Silverside | Nova, Umbra, Celestial, or Aurora |
| Lionfish | Nova, Umbra, Celestial, or Aurora |
| Scorpionfish | Nova, Umbra, Celestial, or Aurora |
| Fourhorn | Nova, Umbra, Celestial, or Aurora |
| Starlet Seahorse | Nova, Umbra, Celestial, or Aurora |
| King Crab | Nova, Umbra, Celestial, or Aurora |
| Frigid Angler | Nova, Umbra, Celestial, or Aurora |
| Broken Arrow | Nova, Umbra, Celestial, or Aurora |
| Bull Shark | Nova, Umbra, Celestial, or Aurora |
| Largemouth Bass | Nova, Umbra, Celestial, or Aurora |
Check every catch before assuming it counts. A Lionfish without one of the four cosmic mutations does nothing for the quest, and you will have to catch another. Pushing your Luck and mutation rates higher is the main way to cut down on wasted catches. A common approach for these is the Cerulean Fang rod with Starlight worms, using a harpoon and crab cage for the free-roaming and shelled targets, since Nova tends to be the easiest cosmic mutation to force.
Turn in and confirm the unlock
With the Isonade caught, all five telescopes lit, and every cosmic fish in hand, return to the quest NPC and turn everything in. The quest advances on its own and a completion screen appears. Once you leave that screen, the rod becomes the unrestricted Stellarwave Melody. If the turn-in does nothing, the usual causes are a telescope that switched off, a fish that lacks a cosmic mutation, or an Isonade that was not the Sparkling Aurora variant.
Unrestricted Stellarwave Melody stats
Removing the restriction upgrades the rod’s numbers and gives it an infinite weight ceiling. Here is what the full version carries.
| Stat | Value |
|---|---|
| Lure Speed | 88% |
| Luck | 244% |
| Control | 0.1 |
| Resilience | 30% |
| Max Kg | Infinite |
| Progress Speed | +24% |

How the zodiac fishing mechanic works
The rod’s defining feature is a constellation minigame. When you fish, 12 zodiac symbols appear around the rod and the game shows an order to click them in, starting with one like Aries. Each correct click adds progress, and completing the full sequence adds a large chunk at once.
Progress on the 12 symbols carries over between catches, so you keep building it as you fish. Once you learn the pattern and keep hitting the symbols in order, the catch speed ramps up sharply, to the point where fish come in almost instantly.

Once the rod is unrestricted, those two large mutation multipliers and the zodiac progress system make it a strong pick for fast catching, and the infinite weight ceiling means no fish is too heavy for it. Take your time on the cosmic fish list, keep your Luck stacked, and the rest of Final Convergence falls into place quickly.






