Blue Archive My Office Cards Season 1: Last Chance

Blue Archive players who have been slowly filling out the My Office card display only have a few more days to complete the first series. The Collectible Card Season 1 event closes on August 18 at 02:59 AM, and any unfinished cards will disappear once the event period ends. Here's what you need to know before the deadline, plus why Season 2 may take some of the pressure off.

Keep an eye on the latest Blue Archive updates as the cutoff approaches.

At a Glance

• Event: My Office Collectible Card Season 1
• End date: August 18 at 02:59 AM
• What's expiring: The current window to obtain Season 1 collectible cards
• Season 2: New ways to obtain Pre-Season and Season 1 cards are confirmed
• Official note: Details are subject to change

Events & Rewards: The Final Window

The My Office collection is one of Blue Archive's quieter side activities, but this event gives players a limited window to finish the Season 1 card display. The official notice says Collectible Card Season 1 is available until August 18 at 02:59 AM. Once that time passes, the current acquisition window closes.

The announcement does not specify a time zone, so treat the in-game countdown as the source of truth. There are no separate reward tiers mentioned in the official materials — the main goal is simply to complete the Season 1 set before the event ends.

How to Make the Most of the Final Days

• Open My Office from the main menu and locate the Collectible Card display.
• Use the in-game notice link to view the complete Season 1 card list.
• Compare that list with your collection to identify missing cards.
• Prioritize the cards you can actually obtain before August 18 at 02:59 AM.
• Rely on the in-game timer, since the official notice does not list a time zone.

If you are F2P, there is no need to force completion at the last second. The notice confirms Season 2 will add new ways to obtain Collectible Cards from Pre-Season and Season 1, meaning missing cards may return later. Still, if you are close to finishing the set, a final sweep is worth the effort.

What Season 2 Means for Missing Cards

The best news in the announcement is the Season 2 confirmation. According to the official notice, Season 2 will introduce new ways to obtain Collectible Cards from both Pre-Season and Season 1. That is a safety net for players who joined late or missed a handful of cards the first time around.

The exact mechanics for Season 2 are not stated in official materials. The notice only says new acquisition methods are coming, so there is no confirmation on shop rotation, event rewards, or craftable cards yet. For now, treat the current deadline seriously, but do not panic if you fall short.

Final Reminder

Before the event ends, open the official notice one more time and check the My Office card list. If even one card is missing, the cutoff is August 18 at 02:59 AM. Once the date passes, the Season 1 window is gone until Season 2 decides how older cards will return.

The notice also reminds players that details can change, so keep an eye on in-game announcements. For more Blue Archive celebration coverage, read our Blue Archive 4.5-Year OST Pack & MD Exhibition Explained guide.