What to know
- Tears Beneath the Mask is an S-Rank Arc obtained from the Nestbound Bird anomaly
- The boss appears at the rooftop of Herland’s PPB Tower after interaction
- The Arc applies a powerful damage-reduction debuff via Ultimate attacks
- You automatically receive the Arc after defeating the boss
If you’re looking to strengthen your Esper builds with a strong utility-focused Arc, Tears Beneath the Mask S-Rank Arc is one of the most important early-to-mid progression milestones in Nevernes to Everness.
NTE Tears Beneath the Mask Arc details
| Attribute | Details |
|---|---|
| Arc Name | Tears Beneath the Mask |
| Rarity | S-Rank |
| Source | Nestbound Bird Anomaly |
| Location | Herland’s PPB Tower (Rooftop) |
| Activation | Interact with anomaly terminal |
| Base ATK | 33 |
| ATK Bonus | 11.00% |
| Core Effect | Applies Warning Gaze on Ultimate hit |
| Debuff Effect | Enemies deal 18% less damage |
| Duration | 20 seconds |
| Stackable | No |
Where to find the Nestbound Bird anomaly
The Nestbound Bird anomaly is located at the rooftop of Herland’s PPB Tower, making it slightly hidden compared to ground-level encounters. You will need to navigate upward through the structure and locate the anomaly terminal before the boss becomes available.

Once you interact with the terminal, the encounter is triggered, and the Nestbound Bird will spawn directly in the rooftop area. The fight takes place in a confined space, which means positioning and awareness are important for survival.
Understanding the Arc’s effect and why it matters
Tears Beneath the Mask stands out because of its strong defensive utility disguised as an offensive trigger. When your Esper uses their Ultimate ability, the Arc applies a debuff called Warning Gaze to enemies hit.
This debuff reduces enemy damage output by 18% for 20 seconds, which can drastically improve survivability during extended fights or boss encounters.

What makes this Arc particularly valuable is that:
- The effect triggers consistently through Ultimates
- It benefits the entire team indirectly by weakening enemies
- It fits well in both DPS and support builds
However, the effect does not stack, so applying it repeatedly only refreshes the duration rather than increasing the reduction.
How to unlock Tears Beneath the Mask Arc in NTE
Step 1
Travel to Herland’s PPB Tower and begin ascending toward the rooftop. You may need to use elevators, stairs, or traversal mechanics depending on your progression.

Step 2
Locate the anomaly terminal near the rooftop area. This is essential, as the boss will not appear until you interact with it.

Step 3
Activate the terminal to trigger the Nestbound Bird encounter. Be prepared before interacting, as the fight starts immediately.

Step 4
Engage the Nestbound Bird and focus on sustained damage while avoiding its attacks. The boss is aggressive and can overwhelm unprepared players.

Defeat the Nestbound Bird to automatically receive the Tears Beneath the Mask Arc. No additional claiming or resource spending is required for the Arc itself.
Combat tips for the Nestbound Bird fight
The Nestbound Bird is designed to pressure players with both mobility and damage, so going in unprepared can lead to quick defeats. You should prioritize survivability and consistent damage output over burst-only strategies.

Bringing a balanced team composition helps significantly, especially if you include:
- A reliable healer or sustain unit
- An Esper with strong Ultimate uptime
- Mobility or dodge-focused characters
Because the fight takes place on a rooftop, spatial awareness becomes critical. You don’t have much room to disengage, so learning attack patterns is key.

How to use Tears Beneath the Mask effectively
You should equip this Arc on Espers who frequently use their Ultimate abilities, as that maximizes uptime on the Warning Gaze debuff. The more often you apply it, the more consistently enemies remain weakened.

It is especially effective in longer fights, such as boss battles or anomaly encounters, where sustained debuffing provides more value than short burst damage.
If you pair it with cooldown reduction or energy regeneration builds, you can maintain near-constant debuff uptime, making your team significantly harder to defeat.
Unlike pure damage boosts, this Arc directly reduces incoming threat, which:
- Helps stabilize weaker teams
- Makes difficult encounters more manageable
- Provides consistent value across different game modes
Because it scales with how often you use Ultimates, it naturally improves as your builds improve, making it a long-term investment rather than a temporary upgrade.
Tears Beneath the Mask is more than just a stat upgrade—it’s a strategic tool that enhances your overall combat stability. By defeating the Nestbound Bird and equipping this Arc wisely, you gain access to a powerful debuff that can shift the outcome of tougher encounters.
If you focus on Ultimate-driven gameplay and team synergy, this Arc will remain relevant throughout your progression, making it a must-have for both new and experienced players.