Sakura'a class go to a strawberry farm, learning Toya and Yukito are working there voluntarily. Syaoran senses something within the study room, but Meiling drags him away before he can investigate. Later, Sakura learns no one can enter the building. She, Tomoyo, Syaoran, and Meiling become locked in the room and can't escape. Sakura spots Ms. Mizuki sitting in a tree, hinting at her to get out using the Clow Key. This unlocks the door, allowing Sakura to capture the Lock Card.