Cardcaptor Sakura: Clear Card-hen

Sakura Kinomoto has finished transforming the Clow Cards into cards of her own and begins middle school hoping magic can finally settle into the background. Her happiness grows when Syaoran Li returns to Tomoeda for good. Then Sakura dreams of a silent, hooded figure surrounded by transparent cards, and the next morning every Sakura Card has become completely clear and unusable.

A new key and a fresh set of mysterious cards begin appearing around her, each tied to strange incidents and recurring dreams she cannot explain. While Sakura captures these unfamiliar powers, Syaoran is clearly hiding something, and new classmate Akiho Shinomoto seems connected to mysteries no one is ready to reveal. The cards are changing again, but this time Sakura does not know who is creating them.