Project SEKAI×Aku no Taizai Series

Project SEKAI×Aku no Taizai Series was a collaboration between Project SEKAI and mothy's Aku no Taizai Series (sometimes referred to as the Nanatsu no Taizai Series or Seven Deadly Sins Series). The collaboration featured VIRTUAL SINGERs as the characters depicted in the series. Cards of these characters were acquirable through the Memoirs of Sins Gacha. The collaboration also added 3 songs: Aku no Musume, Aku no Meshitsukai, and Saribitotachi no Waltz.

Aku no Taizai Series

The Aku no Taizai Series is a multimedia series detailing the events caused by the vessels of sin, cursed relics inhabited by the Demons of Sin. This series is a part of mothy's larger Evillious Chronicles, a dark fantasy series that is told through songs, books, and manga. For more information, check out The Evillious Chronicles Wiki's articles on the Aku no Taizai Series and the Evillious Chronicles.

Characters

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  Margarita Blankenheim

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  Riliane Lucifen d'Autriche

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  Allen Avadonia

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  Kayo Sudou

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  Banica Conchita

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  Gallerian Marlon

Login campaign

Main article: Aku no Taizai Collaboration Login Campaign

Players who logged in between December 13, 2021 15:00 JST and December 27, 2021 14:59 JST received a 2☆ Miku card (The Slothful, Sleepless Widow) and brioche.

Gacha

Main article: Memoirs of Sins Gacha

Timeline of events

September 26, 2021

• Collaboration announced on Project SEKAI Wondershow Channel Anniversary Festa 2021.

November 22, 2021

• Collaboration details announced on Project SEKAI Wondershow Channel #14.

December 13, 2021

• Collaboration began.
• Aku no Taizai Collaboration Login Campaign began.
• Memoirs of Sins Gacha began.
• Aku no Taizai Series SEKAI can be visited.
• Aku no Musume added to the game.

December 14, 2021

• Aku no Meshitsukai added to the game.

December 15, 2021

• Saribitotachi no Waltz added to the game.

December 27, 2021

• Collaboration ended.
• Aku no Taizai Collaboration Login Campaign ended.
• Memoirs of Sins Gacha ended.