Overview |
Story |
Rerun |
Code: BOX (Code: BOX ミレニアムに迫る影 ~一つの問いと二つの答え~ ) is the 42nd event in Blue Archive featuring the members of Cleaning&Clearing, Tea Party, Game Development Department, Seminar, Engineering Department, After School Sweets Club, Justice Realization Committee and Gym Training Department.
The Major characters features Tsukatsuki Rio, Mikamo Neru and Yurizono Seia.
Blurb[]
Event Details[]
Information[]
- Event Period: January 20th, 2025 JST ~ February 03rd, 2025 JST
- Rewards Period: January 20th, 2025 JST ~ February 12th, 2025 JST
- Challenge Stage: January 21st, 2025 JST
- In this Event:
Currency Boost[]



Event Guide[]
- Stages are likely required to be cleared twice. If teachers don't have the upgraded event students; It's easier to clear the stage twice: to get the 3★, bonus student drops, and thus the maximum reward.
- Once an area has been perfectly cleared, at 3★. The stage reward given is always the highest recorded drop, including the bonus from the students.
- Using the "Skip or Rush" function will record the highest drop.
- In this event, teachers can farm a lot of items:
- Materials (Ooparts)
There are 4 types of materials that teachers are able to obtain and each can be obtained from tier 1 to tier 4. There is no event bonus for these materials.- Mandragora
Mandragora 3Category:test ~ Quest 1 (T1/2) / Quest 5 (T2/3) / Quest 9 (T2/3/4)
- Roman Dice
Roman Dice 3Category:test ~ Quest 2 (T1/2) / Quest 6 (T2/3) / Quest 10 (T2/3/4)
- Rohonc
Rohonc 3Category:test ~ Quest 3 (T1/2) / Quest 7 (T2/3) / Quest 11 (T2/3/4)
- Baghdad
Baghdad 3Category:test ~ Quest 4 (T1/2) / Quest 8 (T2/3) / Quest 12 (T2/3/4)
- Mandragora
- Event Currency
Generally, event currencies dropped on all quests with the higher difficulty giving out more and can be doubled should teachers bring along students with event bonuses.
- Materials (Ooparts)
Stage Detail[]
Story Stages | ||||||||
No. | AP | Lv | Terrain | ATK | DEF | Initial Reward | Reward (No Bonus) | 3★ |
01 | No Battle | |||||||
02 | ||||||||
03 | ||||||||
04 | ||||||||
05 | ||||||||
06 | ||||||||
07 | ||||||||
08 |
Type Compatibility | |||||
DEF/ATK | |||||
Normal | Normal | Normal | Normal | Normal | |
Normal | Weak | Resist | Normal | Normal | |
Normal | Normal | Weak | Resist | Resist | |
Normal | Resist | Normal | Weak | Effective | |
Normal | Resist | Normal | Normal | Weak | |
Damage | |||||
Effect | Damage Dealt | ||||
Weak | 2x (200%) | ||||
Effective | 1.5x (150%) | ||||
Normal | 1x (100%) | ||||
Resist | 0.5 (50%) |
Field Operation[]
During the event, teachers may enter the Field Operation "Millennium Expo Extracurricular Investigation" where they can play as Seia and Neru as they solve problems in Millennium Science School. To unlock Field Operation, teachers must progress in the event story with each story unlocking 1 episode per day. Teachers can tap on the magnifying glass to view the current objective at hand. In addition, Infiltration Stage has been added to this Field Operation
Completing certain quests will reward teachers with Karin Schoolgirl FragmentCategory:test Karin Schoolgirl Fragment.[1]
- Notes:
- Stories will be unlocked each day
- Teachers will switch between the Field Operation and the event story in order to progress the main story.
- On the map, any location with a red background is a battle stage, and any location with a purple background is an Infiltration Stage.
- Depending on the episode, teachers will take control of Neru while Seia will be standing in Rio's Hideout.
- Neru cannot interact with any of the interactions that Seia is capable of.
- Seia can interact with the Vending Machine in the Millennium Campus.
- Seia can interact with the mic in Rio's Hideout.
- Seia can interact with the robot dog in Rio’s Hideout.
- On Episode 4, Seia can Interact with the locker in the Game Development Department.
- Stories will be unlocked each day
Infiltration Stage[]
On certain episodes, teachers can enter the Infiltration Stage mark with a purple background while playing as either Seia or Neru. These stages require teachers to make their way to the objective stealthfully. However, should teachers be unable to complete it, they can skip the stage after losing all 6 lives.
- Notes:
- While playing as both Seia and Neru in the Infiltration Stage:
- Both are given 6 lives
- Both can walk slowly
- Both can interact with the Robot Dog to save progress
- While playing as Seia:
- She can hide in a box and move undetected
- She can throw an item to distract the enemies
- While playing as Neru:
- She can heal herself with a potion
- She can knock out enemies
- She can slide through the detection cone for a short-range
- While playing as both Seia and Neru in the Infiltration Stage:
Progression[]
- Complete Story 1
- Doing so will unlock Field Operation
- Enter "Episode 1"
- Mission 1
- Speak with Asuna in front
- Move to the blue marker on the top
- Move and interact with the blue marker in front of the previous marker
- Mission Clear
- Mission 2
- Open the map and move to "Underground Passage"
- Turn behind and interact with the blue marker
- Move below to interact with another blue marker
- Move to the red marker at the bottom right
- Unlocked Infiltration Stage
- Infiltration! Hide in the box and slowly move towards the blue marker on the right when the helmet gang isn't looking
- Infiltration Proficiency increased
- Speak with Neru
- Mission Clear
- Mission 3
- Speak with Neru
- Open the map and move to "Rio's Hideout"
- Speak with Rio
- Speak with Neru
- Mission Clear
- Mission 4 (Information Sharing Meeting 1)
- Speak with Rio
- Speak with Rio again
- Mission Clear
- Episode 1 Complete
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Interact with the mic in Rio's Hideout
- Interact with the Robot Dog in Rio’s Hideout
- Speak with Koyuki in the Underground Passage
- Speak to the Millennium mobs in the Millennium Campus
- Interact with the vending machine in the Millennium Campus
- Complete Story 2
- Enter "Episode 2"
- Mission 1
- Speak with Karin at the top
- Turn around and move below
- Mission Clear
- Mission 2
- Open the map and move to the "Classroom"
- Speak with Millennium mob on the top
- Speak with another Millennium mob above the previous mob
- Open the map and move to the blue marker in the center
- Speak with Natsu on the top right
- Battle! Open the map and move to "Operation Capture the Robot Dog"
- Mission Clear
- Mission 3
- Speak to Karin on the right
- Battle! Open the map and move to "Commotion Confirmation"
- Mission Clear
- Mission 4
- Speak to Karin on the top right
- Speak to Asuna
- Speak with Trinity mob on the bottom left
- Speak with Kotori on the far right
- Move to the blue marker below from where Hibiki is standing
- Interact with the blue marker on the right side of the big damaged robot
- Interact with the Robot Dog on the bottom right
- Mission Clear
- Mission 5 (Information Sharing Meeting 2)
- Open the map and move to "Rio's Hideout"
- Speak with Rio
- Speak with Rio again
- Mission Clear
- Move to the blue marker behind Rio
- Episode 2 Complete
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Natsu in the Classroom
- Koharu can be seen with the Trinity Mobs in the Millennium Lobby
- Complete Story 3
- Enter "Episode 3"
- Mission 1
- Teachers will be controlling Neru in this episode
- Speak to Rio
- Move and interact with the blue marker beside Rio on the right
- Move and interact with the blue marker on the right
- Mission Clear
- Mission 2
- Infiltration! Open the map and move to "Quietly"
- Stealthy move all the way to the right blue marker
- Interact with the terminal on the top right
- Move to the red marker on the top center and enter Battle
- Battle! Automatically entered when moving to the red marker
- Mission Clear
- Infiltration! Open the map and move to "Quietly"
- Mission 3 (Information Sharing Meeting 3)
- Open the map and move to "Rio's Hideout"
- Speak to Rio
- Speak with Rio again
- Mission Clear
- Move to the blue marker behind Rio
- Episode 3 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Seia in Rio's Hideout
- Explore Millennium Campus
- After School Sweets Club can be seen near the vending machine on the far left
- Utaha can be seen running with the Robot Dog
- Complete Story 4
- Enter "Episode 4"
- Mission 1
- Speak with Asuna
- Move to the blue marker on the right near the vending machine and the Robot Dog
- Speak with Karin on the left
- Mission Clear
- Mission 2
- Open the map and move to "Game Development Department"
- Speak with Alice at the center
- Mission Clear
- Mission 3
- Open the map and move to "Exhibition"
- Speak with Alice on the right
- Move to the blue marker near the arcade machine
- Interact with the arcade machine
- Speak with Midori behind the arcade machine
- Move to the blue marker behind Momoi
- Move towards multiple Millennium and Trinity mobs
- Speak with Midori
- Mission Clear
- Mission 4 (Information Sharing Meeting 4)
- Open the map and move to "Rio's Hideout"
- Speak to Rio
- Speak with Rio again
- Mission Clear
- Move to the blue marker behind Rio
- Episode 4 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak to Rio in Rio's Hideout
- Interact with the locker in the Game Development Department
- Speak with Millennium mobs in the Exhibition
- Speak with Alice in the Exhibition
- Speak with Asuna in the Millennium Lobby
- Complete Story 5
- Enter "Episode 5"
- Mission 1
- Teachers will be controlling Neru in this episode
- Move to the blue marker on the top left
- Move to the blue marker in the center
- Speak to Utaha on the right
- Move to the blue marker on the top right
- Speak with Hasumi
- (Optional) Speak with Hasumi and Utaha
- Battle! Open the map and move to "Chase the Helmet Gang"
- Mission Clear
- Mission 2
- Speak to the Red Helmet Gang
- Move to the Red marker where the Helmet Gang just went
- Battle! Automatically entered when moving to the red marker
- Mission Clear
- Mission 3 (Information Sharing Meeting 5)
- Open the map and move to Rio's Hideout
- Speak to Rio
- Speak with Rio again
- Mission Clear
- Episode 5 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak to Hasumi and Utaha in the Fitness Center if you have not done so previously
- Complete Story 6
- Enter "Episode 6"
- Mission 1
- Interact with the blue marker in front of Neru
- (Optional) Speak with Rio
- Infiltration! Open the map and move to "Where is the Key"
- Move all the way to the right
- Move to the blue marker on the top near the Robot Dog
- Interact with the terminal
- Interact with the air vent beside the terminal
- Mission Clear
- Mission 2
- Battle! Open the map and finish 5 battles
- Mission clear
- Mission 3
- Speak with Rio
- Mission Clear
- Episode 6 Clear
- Click on the "End Mission" on the top right to end the Mission
- Seia cannot go anywhere except Rio's Hideout
- Complete Stories 7 and 8
- Enter "Episode 7"
- Mission 1
- Speak with Rio
- Infiltration! Open the map and move to "Mission Possible"
- Interact with the Terminal
- Interact with the blue marker and collect the item
- Throw the item to distract the enemies
- Interact with the door
- Move to the blue marker on the top right near the brown box and use the sonar
- Infiltration Proficiency increased
- Speak with Rio
- Mission Clear
- Episode 7 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak to Rio in Rio's Hideout
- Speak to Utaha in the Classroom
- Speak to Kotori in the Classroom
- Speak to Hibiki in the Classroom
- Enter "Episode 8"
- Mission 1
- Teachers will be controlling Neru in this episode
- Speak to Rio
- Infiltration! Open the map and move to "Exterminating the Remnants"
- Interact with the gate on the top center
- Get behind the enemies and knock them out
- Move and interact with the blue marker on the top center
- Move back to the gate and interact with it
- Move to the top right and interact with the terminal
- Move and slide through the cameras
- Interact with the door on the right
- Move to the blue marker
- Knock down the Red Helmet
- Move to the left and knock down the Black Helmet and from there, move up and right to knock down the Red Helmet
- Infiltration Proficiency increased
- Speak with Rio
- Move away from Rio
- Mission Clear
- Episode 8 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Rio in Rio's Hideout
- Speak with the Helmet Gang in the Underground Passage
- Enter "Episode 9"
- Mission 1
- Speak with Rio
- Optional! Speak with Rio
- Infiltration! Open the map and move to "What Happens in the Middle of the Night"
- Interact with the terminal on the right
- Switch to Neru, knock out the enemies, and interact with the terminal on the top right
- Interact with the air vent on the right
- Interact with the blue marker on the right and get the pliers
- Use the pliers to take out the cameras
- Optional! Move to the right and interact with the blue marker hidden behind the terminal
- Switch to Seia and interact with the door
- Interact with the door on the right
- Interact with the door on the right
- Infiltration Proficiency increased
- Speak with Rio
- Mission Clear
- Episode 9 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Rio in Rio's Hideout
- Speak with Momoi in the Game Development Department
- Enter "Episode 10"
- Mission 1
- Speak with Rio
- Optional! Speak with Rio
- Infiltration! Open the map and move to "Something Someone Does"
- Interact with the door on the right
- Interact with the terminal on the top left
- Switch to Seia and interact with the blue marker
- Move to the top left and interact with the terminal
- Switch with Neru and move to the bottom
- Switch to Seia and move down to interact with the terminal
- Switch to Neru and move to the right and interact with the door
- Infiltration Proficiency increased
- Speak with Rio
- Mission Clear
- Episode 10 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Neru in Rio's Hideout
- Speak with Millennium mobs in the Exhibition
- Speak with Momoi at the Exhibition
- Koyuki can be seen in the Exhibition
- Enter "Episode 11"
- Mission 1
- Speak with Rio
- Optional! Speak with Rio
- Open the map and move to the "Exhibition Booth"
- Move to the blue marker in the center
- Speak with Utaha
- Infiltration! Automatically entered when speaking to Utaha
- Hide in various lockers and interact with the terminal on the right
- Interact with the door
- Infiltration Proficiency increased
- Speak with Rio
- Mission Clear
- Episode 11 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Rio in Rio's Hideout
- Speak with Red Helmet in the Exhibition Booth
- Speak with Alice in the Exhibition Booth
- Speak with Yuzu in the Exhibition Booth
- Enter "Episode 12"
- Mission 1
- Speak with Rio
- Optional! Speak with Rio
- Infiltration! Open the map and move to "Rat in the Bag" (This stage has a time limit and only Seia can save progression
- Switch to Neru, Interact with the blue marker, and get the pliers
- Use the pliers to take out the cameras
- Move to the blue marker
- Interact with the blue marker and get the USB Memory
- Switch to Seia and interact with the blue marker
- Interact with 4 terminals
- Move and interact with the blue marker near the Robot Dog
- Switch to Neru and move all the way to the right and interact with the door
- Infiltration Proficiency increased
- Speak with Rio
- Mission Clear
- Episode 12 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Rio in Rio's Hideout
- Speak with Koyuki in the Millennium Lobby
- Koharu can be seen in the Exhibition Lobby
- Enter "Episode 13"
- Mission 1
- Speak with Rio
- Open the map and move to "Millennium Campus"
- Speak with Asuna
- Optional! Speak with Asuna
- Open the map and move to "Game Development Department"
- Speak with Momoi
- Interact with the blue marker
- Optional! Speak with Momoi
- Open the map and move to "Engineering Department Lab"
- Since there's no one else inside the "Engineering Department Lab", Open the map again and move to "Exhibition Booth"
- Move to the purple/pink marker
- Infiltration! Automatically entered after move to the purple/pink marker (This stage requires Seia to escape without being caught)
- Avoid being caught and interact with 3 vending machines all the way to cover the escape
- Interact with the blue marker and all robots are opening the path for Seia
- Interact with the terminal on the left
- Infiltration Proficiency increased
- Speak with Rio
- Battle! Open the map and move to "Destroy Mecha Crocodile"
- Move to the blue marker
- Mission Clear
- Episode 13 Clear
- Click on the "End Mission" on the top right to end the Mission
- Free roam (Optional)
- Speak with Neru in Rio's Hideout
- Speak with all After-School Sweets Club members in the Classroom
- Speak with Utaha in the Engineering Department Lab
- Open the map and move to "Fitness Center"
- Hasumi, Sumire, and Koharu can be seen in the Fitness Center
- As optional, you can interact with Yoga Ball and the Vending Machine inside the Fitness Center
Achievement[]
File:Event 42 - Guide 3.pngEvent 42 - Guide 3Category:test
Achievements | |||||
No. | Requirement | Count | Reward | Rush? | Tips |
01 | Clear all Story, Quest, and Challenge stages | 26 | No | Clear all stages | |
02 | Clear Quest 1 of the event within 75 seconds | 75 | N/A | ||
03 | Clear Quest 2 of the event within 75 seconds | ||||
04 | Clear Quest 3 of the event within 75 seconds | ||||
05 | Clear Quest 4 of the event within 75 seconds | ||||
06 | Clear Quest 5 of the event within 75 seconds | ||||
07 | Clear Quest 6 of the event within 75 seconds | ||||
08 | Clear Quest 7 of the event within 75 seconds | ||||
09 | Clear Quest 8 of the event within 75 seconds | ||||
10 | Clear Quest 9 of the event within 75 seconds | ||||
11 | Clear Quest 10 of the event within 75 seconds | ||||
12 | Clear Quest 11 of the event within 75 seconds | ||||
13 | Clear Quest 12 of the event within 75 seconds | ||||
14 | Clear 12 or more of the event missions | 12 | Any 12 missions |
Shop[]
Exchange Shop[]
File:Event 42 - Guide 5.pngEvent 42 - Guide 5Category:test
Event Points[]
File:Event 42 - Guide 6.pngEvent 42 - Guide 6Category:test
Rewards | |||||||||
Total Rewards | |||||||||
Currency | |||||||||
Exp Material | |||||||||
Skill Book & Disk | N/A |
Trivia[]
- The entire Infiltration/Undercover stages are all reminiscent from Metal Gear games and most of its series.
- Neru being able to knock out enemies is similar to Solid Snake doing CQC on enemies, stunning them for a brief time but with a few exceptions, once the enemy is knocked out, it will despawn and never appear again.
- Seia interacting with the Microphone on Rio's hideout is a nod reference to the "Seia Muted" meme, a meme that has been canonically inserted by the developers and Yostar.
Credits[]
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V • T • E Events | |
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Special Operation | Mini Event |
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Union Operation | Union Operation (Rerun) |
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Conquest Battle | Conquest Battle (Rerun) |
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Rerun | |
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