第4集 A Berry Merry BirthdayStrawberry Shortcake's Berry Bitty Adventures 第四季The twins' birthday is approaching. Sour says she does not wish to share the birthday with Sweet. Sweet is sad that her sister feels that way but respects her wish. Sour initially enjoys having a birthday of her own and the activities the Berry girls plan for her, but gradually feels lonely without her sister, and regrets what she said earlier.