Camila, who just moved to 27 Description Street, and Kira didn't get along from their very first meeting. Kira hoped to avoid Camila as much as possible, but when Camila's parents ask Kira to walk their dog Bully, the two girls are forced to meet. On the day they're supposed to meet for the dog walk, Camila's careless behavior causes Bully to go missing. Kira is unfairly blamed for losing Bully and finds herself confused about how to handle her frustrated feelings. To make matters worse, she witnesses her own parents arguing, hurling blame at each other. Will Kira learn to honestly express her emotions, resolve her feelings, and improve her relationship with Camila? The ninth story in the self-management series from the bestselling author of Kira, Who Became Rich at Twelve—beloved by 1.5 million readers! This time, the theme is 'emotions'! Are you truly expressing your feelings—anger, joy, sadness, frustration—the right way? The latest installment in the Kira self-management story series, which has captured the hearts of 1.5 million readers, has arrived. The theme of this ninth book in the series is 'emotions.' After covering topics like money, time management, and habits, the series concludes with 'emotions' because emotional understanding is a crucial factor in children's social development. For children who have already begun社会 life in various forms through family, school, and peer groups, expressing emotions properly is an essential skill. Whether feeling angry, frustrated, upset, or happy and grateful, expressing these feelings honestly and appropriately is one of the most basic parts of social life. But are we really doing this well? Not just children, but many adults also struggle to express their emotions honestly and correctly. If children don't learn how to properly express emotions during the years when their social skills are forming, it becomes much harder to fix later in adulthood. That's why it's so important to teach children the right way to express their feelings. Kira, the main character of this book, struggles with expressing her emotions just like many children do. Through her experiences, she grows into someone who understands her feelings and can express them honestly—becoming 'rich in emotions.' What happens to Kira along the way? Let's discover, together with Kira, how to face our emotions as they are and how to express our true feelings honestly! A child who suppresses and ignores their feelings, a child who takes out anger on the wrong person… could this be your child? Learn how to accept even negative emotions as valuable parts of yourself—learn together with Kira! Of course, expressing positive emotions like joy, gratitude, and happiness well is important, but expressing negative emotions like sadness, anger, and frustration is even more crucial. If we think of these as 'bad' feelings and suppress or ignore them, they're bound to come out in unhealthy ways eventually. Kira and Camila, the characters in this book, also struggle to properly express their negative emotions. Kira tries to ignore the negative feelings that trouble her heart, while Camila tries to release her negative emotions through irritability and misplaced anger. Do you think this kind of behavior exists only in the pages of a story? Without sadness, we couldn't truly understand joy! Negative emotions, too, are precious feelings that protect our hearts. We need practice accepting even our negative emotions as our own and expressing them honestly. Through the emotional struggles that Kira and Camila go through, this book addresses not only positive emotions but also how to face negative emotions head-on and express them in healthy ways. Readers of this book will learn how to face emotional challenges through Kira's experience with her parents' marital conflict and her relationship with her peer Camila. They'll also learn how to properly express emotions through the story of Grandma Estelle, who endured a difficult time after losing her family, and the counseling journey of Mr. Goldstern, who experienced paralysis from an accident. Rather than through rigid theory or formal explanations, this book presents emotional lessons through vivid storytelling, allowing readers to grow emotionally simply by following the conversations between Kira and her emotional mentors.