Black Jack takes on a case of Sono, a young girl who is sensitive to light and has a weak heart. Her father wants her to become better at all cost so she can become the head of the family. The family's main focus is ikebana so Sono is pushed to the brink of death to make the ultimate ikebana for her recital. When Sono almost dies trying to go outside to see wildflowers in their natural beauty, Black Jack tells her father she is being pushed too hard. Sono tells Black Jack she will die anyway so why give her the surgery...