Animal Jumper and his friends noticed that their friend Karim seemed unusual for the past two days. He appeared distracted, not laughing or playing with them as usual. They were certain that something uncommon was occupying his mind, and they insisted on knowing what it was. When they asked him, they were surprised to hear that there was a 'heavy guest' who had come to stay with him and his family permanently. This guest had taken over all the attention and care of his parents, who used to focus solely on Karim. What's the story behind this guest? Who is he? Will Karim continue to reject his presence, or will he get used to him and grow to love him with time? These are the questions we will find answers to as we follow the events of this enjoyable story.