A collaboration event between the smartphone 3D action RPG White Cat Project NEW WORLD'S and the popular Atelier RPG series has kicked off on February 27, 2026. The event brings together Koei Tecmo Games' Gust brand Atelier franchise with the world of White Cat Project.
[Event PV] https://youtu.be/UiEiD8jBTLI
Story
Three alchemists — Sophie Neuenmuller from Sophie: The Alchemist of the Mysterious Book (CV: Yuka Aisaka), Reisalin "Ryza" Stout from Ryza: Ever Darkness & the Secret Hideout (CV: Yuri Noguchi), and Yumia Liessfeldt from Yumia: The Alchemist of Memories & the Envisioned Land (CV: Wakana Kuramochi) — are led by a mysterious light into the world of White Cat Project.
Seeking a way home and aiming to help the people they meet through alchemy, the three decide to open an atelier together. The event follows their adventure as they search for a way back to their own world.
Appearing Characters
Sophie Neuenmuller (CV: Yuka Aisaka)
A bright and easygoing girl who becomes serious and hard-working when it comes to alchemy.
Reisalin "Ryza" Stout (CV: Yuri Noguchi)
An energetic and free-spirited girl who doesn't easily back down from what she believes is right.
Yumia Liessfeldt (CV: Wakana Kuramochi)
A calm and gentle woman who has joined an expedition to uncover the true intentions of her mother and the truth of alchemy.
Collaboration Event and Character Gacha Period
February 27, 2026 (Friday) 4:00 PM – March 17, 2026 (Tuesday) 3:59 PM (scheduled)
- These characters appear at ★4 and ★5 rarity.
- ★ indicates rarity level.
- Images may include content still in development.
- For full details, see in-game announcements.
Daily Free Collaboration Gacha
During the event period, players can use the character "1 Pull" gacha once per day for free.
Free Gacha Period: Through March 17, 2026 (Tuesday) 3:59 PM
For details, please check in-game.
Special Jewel Packs Available in the White Cat Official Store
Various jewel packs are available in the White Cat official store via App Pay, offering jewels at better value than in-game purchases. Details for each pack are available in the official store, while exchange methods and conditions for tickets can be found in-game.
White Cat Official Store: https://app-pay.jp/app/shironeko-project
Sale Period: February 27, 2026 (Friday) 4:00 PM – March 17, 2026 (Tuesday) 3:59 PM (scheduled)
Premium Jewel Pack
Price: ¥10,000 (tax included)
Contents: 675 Jewels, 65 Free Jewels, 1 ★5 Character Guaranteed Ticket, and more
BIG Stamp Jewel Pack
Price: ¥3,600 (tax included)
Contents: 240 Jewels, 24 Free Jewels, 3 BIG Stamps, 2 EX Runes
Collab Commemorative BIG Stamp Jewel Pack
Price: ¥800 (tax included)
Contents: 54 Jewels, 5 Free Jewels, 1 BIG Stamp, 4,000 Rainbow Rune Fragments
Collab Costume Character Exchange Ticket Jewel Pack
Price: ¥10,000 (tax included) ※Up to 3 purchases
Contents: 675 Jewels, 40 Free Jewels, 1 Collab Costume Character Exchange Ticket, and more
Characters Available via the Collab Costume Character Exchange Ticket
Emma (CV: Ai Kakuma) — wearing Sophie's costume
Rylan (CV: Noriko Shitaya) — wearing Ryza's costume
Silpha (CV: Shion Wakayama) — wearing Yumia's costume
Exchange methods and conditions are available in-game.
Collab Impressions Campaign on Official X
The White Cat Project official X account (@wcat_project) is running a posting campaign. Players who share their impressions of the collaboration event with the hashtag #白猫アトリエコラボ感想 will be entered into a draw to win acrylic stands of Sophie, Ryza, and Yumia — 20 winners each (60 total). Including screenshots or videos with your post increases your chances of winning.
Campaign Period: February 27, 2026 (Friday) 4:00 PM – March 17, 2026 (Tuesday) 3:59 PM (scheduled)
White Cat Project Official X: https://x.com/wcat_project
About the Atelier Series
The Atelier series is an RPG franchise produced by Koei Tecmo Games' Gust brand, centered on "alchemy" as its theme. Starting with Marie: The Alchemist of Salburg in 1997, the series is known for its synthesis system, in which players combine materials to create new items. As of 2023, the series has shipped over 7.5 million copies worldwide.
About White Cat Project NEW WORLD'S
White Cat Project NEW WORLD'S is a full-fledged 3D action RPG playable with simple controls. Features include battles, town-building, and real-time multiplayer battles for up to four players. The "Skill Combination" battle system enables faster action and diverse combinations of skills and characters. The game celebrates its 12th anniversary on July 14, 2026.
- Official Website: https://colopl.co.jp/shironekoproject/
- Official X: https://x.com/wcat_project
