The 4.5 Year Anniversary Campaign is a series of game additions added in celebration of 4 and a half years since Project SEKAI's release. The campaign was announced on March 28, 2025 as part of Project SEKAI Broadcast Station #18.
World Bloom Campaign[]
The World Bloom Campaign is held from March 30 to April 8, 2025. As part of the campaign, players receive World Pieces from events, My SEKAI, and the 4.5 Anniversary Stamp Missions. World Pieces can be exchanged for various items in the World Bloom Exchange.
Login Campaign[]
The 4.5 Anniversary Login Campaign is available from March 30 to April 12, 2025.
| Day | Item | Amount |
|---|---|---|
| 1 |  Crystal
|
3000 |
 [4.5 Anniversary] Free Gacha TicketRedeemable in the (4.5 Year Anniversary) 10x Free Gacha |
70 | |
| World Piece | 50 |
Song Campaign[]
| № | Cover | Song | Unit | Date Added |
|---|---|---|---|---|
| 01 | 
|
Call!! |  VIRTUAL SINGER
|
03/30/2025 |
| 02 | 
|
Yoshiwara Lament Sairaiban | VIRTUAL SINGER
|
03/31/2025 |
| 03 | 
|
MANHATTAN | VIRTUAL SINGER
|
04/02/2025 |
| 04 | 
|
Queen of Hearts | VIRTUAL SINGER
|
04/03/2025 |
| 05 | 
|
Barerii Ko | VIRTUAL SINGER
|
04/04/2025 |
Gachas[]
4.5 Anniversary Gift Tickets received from the (4.5 Year Anniversary) Heartfelt Gift Gacha can be exchanged in the World Bloom Exchange for various practice items.
| Gacha | Pick-Up Members | Type | Gacha Period |
|---|---|---|---|
 (4.5 Year Anniversary) Bloom Festival Gacha |
    
|
Bloom Festival | Mar 30, 2025 Apr 4, 2025 |
 (4.5 Year Anniversary) 10x Free Gacha |
     
|
Free Pull | Mar 30, 2025 Apr 8, 2025 |
 (4.5 Year Anniversary) Heartful Gift Gacha |
Normal | Jul 8, 2025 Jul 8, 2025 | |
 (4.5 Year Anniversary) Premium Gift Gacha |
     
|
Premium Gift | Mar 30, 2025 Apr 8, 2025 |
 (4.5 Year Anniversary) LIMITED EDITION Select List Gacha |
     
|
LIMITED EDITION Your Pick | Mar 30, 2025 Apr 8, 2025 |
 Living with music Gacha |
|
Limited Event | Apr 4, 2025 Apr 8, 2025 |
Crystal Shop[]
4.5 Anniversary additions to the Crystal Shop are available from March 30 to April 8, 2025 both in-game and on the Project SEKAI Online Store.
Celebration Sets[]
Crystal Pack Sales[]
| Item | Paid Crystals | Free Crystals | World Bloom Gift | Price |
|---|---|---|---|---|
| Crystals E |  3000
|
 500
|
 50 •  10
|
￥3000 |
| Crystals F | 5000
|
850
|
 1 • 100 • 20
|
￥4900 |
| Crystals G | 10500
|
1800
|
3 • 250 • 30
|
￥10000 |
[]
Project SEKAI Special Campaigns
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