Bilibili‘s Artery Gear: Fusion is having a collaboration with Atelier Ryza for its Japanese servers, having begun 30 December 2021. You still have plenty of time to get Ryza and co in Artery Gear, as it will last until 24 January 2022. As is usually the case, the collab means collab characters and associated event story.
Reisalin “Ryza” Stout, Klaudia Valentz and Lila Decyrus are available as playable units, with Klaudia being the free collab character. You’ll have to get Ryza and Lila from the collab gacha. They’re all 5-star characters, with Ryza being Fire, Klaudia being Wind, and Lila being Thunder.
The collab has two parts to it: you’ll be able to obtain and exchange event currency in the corresponding store for your rewards. The other is getting tickets in order to challenge the event boss for further rewards. There’s also an “Atelier” mini game, bringing the little joys of alchemy to Artery Gear. Enjoy some cute event CGs and collect the collab furniture for your girls too. New players joining in for the collab will be able to get the 4-star AG, Morris, after logging in for 7 days. After 9 days, you’ll be able to claim an outfit for Nio, besides all other associated rewards.