Sam has been working at Starbucks, and as an adult, he has the IQ of a seven-year-old. By chance, he took in a homeless girl who disappeared after giving birth to a daughter with him. Although Sam sometimes looks like a child, he is a kind-hearted man. He loves his child very much, and named the child Lucy with his favorite song "Lucy in the Sky with Diamonds". Lucy also grew up under Sam's care and became a smart girl. Gradually, Lucy found that her father could not understand more complicated stories, so she wanted to be like her father and refused to grow up. Originally, the two lived happily together, but the education officials in this area discovered them. The officials felt that Sam was unable to take care of Lucy, so they took his daughter away. Sam was very sad, but cheered up, he found the most powerful lawyer he thought and wanted to fight for the custody of his daughter