What to know
- Song of the Whale is an S-Tier Plasma Arc with strong offensive scaling and sustain effects.
- You unlock it by triggering and defeating the Sea Prisoner boss in a hidden sequence.
- The Arc boosts ATK, damage to Broken enemies, and provides conditional healing.
- Its effect activates on defeating Broken enemies with a cooldown-based trigger.
The Song of the Whale Arc stands out as one of the more cinematic and rewarding unlocks in Neverness to Everness. Unlike standard drops, this Arc requires you to actively trigger a hidden boss event, follow a dynamic chase sequence, and complete a high-intensity fight. If you enjoy exploration mixed with combat, this Arc delivers both.
NTE Song of the Whale Arc details
| Attribute | Details |
|---|---|
| Arc Name | Song of the Whale |
| Rarity | S-Tier |
| Type | Plasma |
| Base ATK | 33 |
| ATK Bonus | 11.00% |
| Arc Effect | Deep Blue Sorrow |
| Key Bonus | ATK +12%, Bonus Damage to Broken Enemies |
| Special Effect | Restores HP on defeating Broken enemies |
| Cooldown | 30 seconds |
This Arc is particularly valuable for aggressive builds that rely on breaking enemies and chaining kills efficiently.
Where to find the Sea Prisoner in Neverness to Everness
To unlock this Arc, you must first trigger a hidden boss encounter involving the Sea Prisoner. This is not something you stumble upon casually, and it requires a very specific action sequence.

The journey begins in the Bridge Crossing district, where you need to locate the Nautili Tunnel. Instead of driving normally, you must reverse your vehicle into the tunnel, which acts as the trigger condition. This unusual mechanic is easy to miss, making the Arc feel like a true hidden reward.

Once triggered, you will enter a chase sequence involving a massive whale-like entity. This segment is both visually striking and mechanically important, as you must keep up with the target to progress. The chase eventually leads you into an icy region, where a cutscene seamlessly transitions into the boss fight.
How to get Song of the Whale Arc in NTE
Step 1
Head to the Bridge Crossing district and locate the Nautili Tunnel. Make sure you are aligned properly to approach the entrance.

Step 2
Drive your vehicle backwards into the tunnel. This is the key trigger condition that initiates the hidden sequence.

Step 3
Follow the whale during the chase sequence. Maintain speed and direction as the game guides you toward the next phase.

Step 4
Reach the icy region where the cutscene begins. This signals the transition into the boss encounter.

Step 5
Defeat the Sea Prisoner boss. Focus on breaking its defenses efficiently to capitalize on damage windows.

Step 6
Contain the anomaly after the fight. This final step rewards you with the Song of the Whale Arc.

Understanding Deep Blue Sorrow Arc effect
The Arc effect, Deep Blue Sorrow, is where Song of the Whale truly shines. It combines offensive boosts with survivability, making it versatile across different combat scenarios.
| Effect Component | Value |
|---|---|
| ATK Increase | 12.00% |
| Damage to Broken Enemies | 12.00% |
| HP Restoration | 30.00% |
| Trigger Condition | Defeat a Broken enemy |
| Cooldown | Once every 30 seconds |
This effect encourages a playstyle focused on breaking enemy defenses quickly and finishing them off. Once you defeat a Broken enemy, you gain a significant HP recovery, which can turn the tide during extended fights.

You will notice its strength especially in longer encounters where consistent healing allows you to stay aggressive instead of retreating. The cooldown ensures it is not overpowered, but still reliable enough to trigger multiple times in extended fights.

Its synergy with Break-focused teams makes it a strong pick for mid-to-late game progression. When paired with characters or setups that excel at breaking enemies quickly, you can maintain a steady loop of damage and healing.
Best situations to use this Arc effectively
Song of the Whale performs best in encounters where enemies can be broken frequently. This includes elite enemies, bosses with breakable phases, and multi-enemy fights where you can chain eliminations.

You should prioritize it when:
- Your build revolves around Break mechanics
- You need extra sustain without sacrificing damage
- You are tackling longer or more difficult encounters
It may feel less impactful in quick fights where enemies don’t survive long enough to trigger its full effect.
Rewards from the Sea Prisoner encounter
| Reward Item | Quantity |
|---|---|
| Annulith | 40 |
| Silver Carrota | 80 |
| Anomaly Material Selection Box | 5 |
| U-ONE | 30 |
| Beetle Coin | 7,500 |
The primary reward is the Arc itself, making this encounter highly valuable for progression-focused players.
Song of the Whale is more than just a powerful Arc—it is a reward for exploration and mastery of hidden mechanics. From the unconventional trigger condition to the cinematic boss fight, the entire unlock process feels intentional and rewarding.
If you enjoy optimizing your combat efficiency, this Arc offers a strong combination of sustained damage and survivability. Once you integrate it into your build, you will notice smoother fights and better endurance in tougher encounters.