Nexon Updates 'Blue Archive' with Decagrammaton Chapter 3

Jun 8, 2026

Source: Nexon

블루 아카이브 Blue Archive — Blue Archive official image ©Nexon

Nexon announced on the 9th that it has updated the subculture game Blue Archive with Main Story EX: Decagrammaton Chapter 3, Part 3.

This main story follows students from Millennium Science School—including Kei, Rio, and Aris—as they reach the heart of the Steel Continent after defeating all of the Prophets' clones. There, they come face-to-face with the final Prophet, Malkuth. The story can be experienced after completing the event story 'Steel Continent Strategy: Joint Operation Malkuth.

A new boss, Malkuth, will be added to the World Raid content 'Joint Operation' on the 10th. The progress of this operation is linked to the Steel Continent strategy, and players can use Joint Operation tickets to challenge the boss at their preferred difficulty level. Boss elimination rewards include Technical Notes, Tactical Training BDs, and Artifacts. Completing the final battle will grant various rewards, including Pyroxenes, Secret Tech Sheets, and 10-pull Recruitment Tickets.

Additionally, two new students from Millennium Science School have been introduced: Kei and Aris (Armed). Kei is a Mystic-type Supporter whose EX Skill installs an amplification device that increases the Attack of allies within a circular range for a set duration. Aris (Armed) is a Mystic-type damage dealer whose EX Skill deals powerful damage to a single target while also inflicting additional damage to enemies in a straight line. Notably, her energy increases based on the charge level, allowing for strategic combat.

To celebrate the update, Nexon is hosting a 3x Reward campaign. First, completing Requests in Wanted and Mission campaigns through June 16 will provide triple the rewards, such as Tactical Training BDs, Technical Notes, and Artifacts for various academies. Furthermore, from June 16 to June 23, completing Academy Exchange and Special Requests will grant triple the items, including Activity Reports.

More details regarding the Blue Archive Main Story EX: Decagrammaton Chapter 3, Part 3 update can be found on the official community.

This article was originally written in Korean and translated with the help of NC AI. It was then edited by a native English-speaking editor. All AI-assisted translations are reviewed and refined by our newsroom. [Read Original]