Xixi, a girl with advanced liver cancer, only has three days left to live. In order not to hinder her mother who is pregnant with twins and her father who sells blood and does odd jobs to make a living, she deliberately pretends to be naughty and throws away life-saving medicine, fights for her mother's egg custard, burns awards and memorials, and forces her parents to give up on her. She endured the pain alone in pain, secretly leaving her only savings as a gift for her younger siblings, and finally passed away in her favorite red dress. Her parents were heartbroken after discovering the fragments of the medical certificate. Her father's obsession with breaking into the underworld moved the Lord of Hell, and Xixi was allowed to stay in the form of an orange cat for three years to protect the safety of her family. Three years later, watching her younger siblings grow up and her parents emerging from the gloom, she said goodbye with relief.