COSM-GAME Blue Archive Opens Schale Books Mini Event
Blue Archive opens the Balancing Schale's Books with the General Student Council mini event after maintenance on September 8, 2026, following Nexon's September 7 announcement. Sensei who have cleared Mission 2-3 (Normal) can spend AP to earn Financial Calculators, then use them in Manage Inventory to uncover hidden items and collect round rewards. The event runs through September 15 at 1:59 AM UTC, while its prize exchange remains available until September 22.
Game summary
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Balancing Schale's Books Event Schedule
Balancing Schale's Books with the General Student Council begins in Blue Archive after the September 8 maintenance. The mini event is available for one week, but Nexon keeps its reward exchange open for another week after normal event participation closes.
| Event item | Schedule or requirement |
|---|---|
| Event start | September 8 after maintenance |
| Event end | September 15 at 1:59 AM UTC |
| Prize Exchange end | September 22 at 1:59 AM UTC |
| Unlock requirement | Clear Mission 2-3 (Normal) |
The mini event is part of the September 8 update, but it has its own eligibility, currency and reward loop. Players who have not yet cleared Mission 2-3 (Normal) need to complete that stage before accessing it.
How to Earn Financial Calculators
The event currency is called Financial Calculators. During the active event period, players earn them by spending AP on specified AP-consuming content, including Missions and Commissions.
Nexon places a cap of 16,000 Financial Calculators on the amount that can be obtained during the event. The currency is then spent inside Manage Inventory rather than functioning as a normal permanent resource.
How Manage Inventory Works
Manage Inventory turns the event currency into a board-style reward system. Opening a slot of the player's choice costs 60 Financial Calculators. A revealed slot can contain part of a hidden item or an empty square.
| Manage Inventory rule | How it works |
|---|---|
| Open a slot | Spend 60 Financial Calculators on a selected slot. |
| Reveal contents | A slot contains part of a hidden item or a blank square. |
| Hidden item size | One hidden item can occupy one or more slots. |
| Complete an item | Fully revealing a hidden item grants its reward for that round. |
| Check rewards | The All Rewards menu shows the rewards available in the current round. |
| Refresh | The next round can be selected after at least one complete hidden item is revealed. |
Players can therefore choose between continuing to search the current board or moving on after meeting the refresh requirement. Once all hidden items in a round have been discovered, additional slots can no longer be opened in that round.
Event Shop and Remaining Currency
The mini event also includes an event shop containing additional rewards. Because the Prize Exchange remains open through September 22, players have extra time after normal event progression closes on September 15 to handle the exchange period.
Unused event currency does not remain in the inventory permanently. After the event period, unused currency is converted into Credit Points at a 1:1 ratio and delivered to the player's mailbox.
Note: Normal event participation ends September 15 at 1:59 AM UTC, while the Event Prize Exchange remains available until September 22 at 1:59 AM UTC.
What to Complete Before September 15
The active week centers on spending AP, building a supply of Financial Calculators and deciding how far to push each Manage Inventory round. Players can obtain up to 16,000 Financial Calculators before the event closes, with each opened slot consuming 60.
The key distinction is between the event period and the longer exchange period. AP-based currency acquisition and normal event participation belong to the September 8–15 window, while the additional exchange window remains open for another seven days.
FAQ
6 questionsThe mini event begins after maintenance on September 8, 2026 and ends September 15 at 1:59 AM UTC. The Event Prize Exchange remains available until September 22 at 1:59 AM UTC.
Players must clear Mission 2-3 (Normal) before they can participate in Balancing Schale's Books with the General Student Council.
Financial Calculators are earned by spending AP on specified AP-consuming content such as Missions and Commissions during the event. A maximum of 16,000 Financial Calculators can be obtained during the event period.
Opening one chosen slot costs 60 Financial Calculators. Each slot can reveal part of a hidden item or an empty square, and fully uncovering a hidden item awards the corresponding round reward.
A round can be refreshed after at least one complete hidden item has been uncovered. Once every hidden item in the current round has been found, no additional slots can be opened in that round.
Unused event currency is converted into Credit Points at a 1:1 ratio after the event period and delivered through the mailbox.