Having successfully retrieved and transformed all of the Clow Cards into her own Sakura Cards, Sakura Kinomoto begins her first year at Tomoeda Middle School where she is delighted to be reunited with her beloved Shaoran Li, who is permanently returning to Tomoeda to join her school. Unfortunately, Sakura's peace is disrupted when she has a dream about an intruder in a hood, causing her Sakura Cards to become transparent upon waking up. To make matters more peculiar, Sakura encounters her mysterious adversary again and acquires a new magical key, marking the initiation of her latest adventure in Cardcaptor Sakura.