Monumental Etching: Corrupting Surge

Upcoming Challenge Event
Start: May 8, 2026 End: May 22, 2026
Monumental Etching: Corrupting Surge

[Monumental Etching] Event Series Details

- Participation Requirements -
· Complete the main mission [Chapter Ⅰ Process Ⅱ: Paving the Way].
· Endministrator Authority Level ≥ 30

- Event Rules -
· Reach the specified Endministrator Authority Level to unlock [Umbral Monument] stages.
· Complete various [Umbral Monument] challenges to claim [Monumental Etching] event rewards.

Stages 8

In [Umbral Monument], complete "Tidal Grief" in Normal Mode
In [Umbral Monument], complete "Tidal Grief" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Advanced Cognitive Carrier Advanced Cognitive Carrier ×5 Advanced Cognitive Carrier ★★★★★ A material that provides a lot of EXP for leveling up Lv.61-90 operators. Overview › Arms INSP Set Arms INSP Set ×10 Arms INSP Set ★★★★ A material that provides a lot of weapon EXP. Overview ›
In [Umbral Monument], complete "Cryostatic Connection" in Normal Mode
In [Umbral Monument], complete "Cryostatic Connection" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Protohedron Protohedron ×8 Protohedron ★★★★ A material that upgrades operator skills. Overview › T-Creds T-Creds ×30,000 T-Creds ★★★★ TC for short. This currency is recognized and used in many places.
In [Umbral Monument], complete "Blood Debased" in Normal Mode
In [Umbral Monument], complete "Blood Debased" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Heavy Cast Die Heavy Cast Die ×6 Heavy Cast Die ★★★★ A material that tunes weapons. Overview › T-Creds T-Creds ×30,000 T-Creds ★★★★ TC for short. This currency is recognized and used in many places.
In [Umbral Monument], complete "Silent Horizon" in Normal Mode
In [Umbral Monument], complete "Silent Horizon" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Advanced Cognitive Carrier Advanced Cognitive Carrier ×5 Advanced Cognitive Carrier ★★★★★ A material that provides a lot of EXP for leveling up Lv.61-90 operators. Overview › Arms INSP Set Arms INSP Set ×10 Arms INSP Set ★★★★ A material that provides a lot of weapon EXP. Overview ›
In [Umbral Monument], complete "Withered Sea" in Normal Mode
In [Umbral Monument], complete "Withered Sea" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Advanced Cognitive Carrier Advanced Cognitive Carrier ×5 Advanced Cognitive Carrier ★★★★★ A material that provides a lot of EXP for leveling up Lv.61-90 operators. Overview › Arms INSP Set Arms INSP Set ×10 Arms INSP Set ★★★★ A material that provides a lot of weapon EXP. Overview ›
In [Umbral Monument], complete "Underflow Chasm" in Normal Mode
In [Umbral Monument], complete "Underflow Chasm" in Normal Mode
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Protoset Protoset ×6 Protoset ★★★★ A material that promotes operators to E3 or E4. Overview › T-Creds T-Creds ×30,000 T-Creds ★★★★ TC for short. This currency is recognized and used in many places.
Challenge any "Turbidity Manifest" stages 6 times
Challenge any "Turbidity Manifest" stages 6 times
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Advanced Progression Selection Crate Ⅰ Advanced Progression Selection Crate Ⅰ ×5 Advanced Progression Selection Crate Ⅰ ★★★★★ Opening this lets you acquire an advanced progression material of your choice. Protohedron Protohedron ×8 Protohedron ★★★★ A material that upgrades operator skills. Overview ›
Challenge any "Turbidity Manifest" stages in Agony Mode 1 time
Challenge any "Turbidity Manifest" stages in Agony Mode 1 time
Oroberyl Oroberyl ×150 Oroberyl ★★★★★★ An artificial material often used for recruiting operators. Advanced Progression Selection Crate Ⅰ Advanced Progression Selection Crate Ⅰ ×5 Advanced Progression Selection Crate Ⅰ ★★★★★ Opening this lets you acquire an advanced progression material of your choice. Protohedron Protohedron ×8 Protohedron ★★★★ A material that upgrades operator skills. Overview ›