Movie
Description
Nana is a young spinosaurus and the central character of the film. He hatches from an egg created by researcher Billy, making him a real dinosaur rather than a robot. After being separated from his creator, Nana is found by the Nohara family dog, Shiro, near a riverbank in Kasukabe. The Nohara family initially mistakes him for an iguana due to his small size and the red feather crest on his head, which, along with his dorsal fin, are his most distinctive physical traits. His name is derived from the word banana.

Nana has a gentle and curious personality. As a baby dinosaur, he sees the world with wonder and instinctively seeks connection and safety. He communicates solely through variations of the sound "na," which nonetheless convey a wide range of emotions—joy, fear, affection, and distress. His motivations are simple: to be with those who care for him, to explore his surroundings, and to feel protected. The "dinosaur diary" of the film's title refers to the memories and experiences he shares with the characters he meets.

His role in the story is pivotal. He becomes a temporary member of the Nohara family and a friend to the Kasukabe Defense Force. The film follows the summer days they spend together, building a deep bond. At the same time, his existence makes him a target for the commercial interests behind the Dino Island theme park, which seeks to capture him. This conflict drives the plot, raising themes of family, responsibility, and the ethics of creating life.

Nana’s key relationships are with Shiro and Shinnosuke. Shiro acts as his first guardian and steadfast protector, while Shinnosuke grows from viewing Nana as a fun playmate into taking on a parental role, caring for him and defending him at great personal cost. The other members of the Kasukabe Defense Force—Kazama, Nene, Masao, and Bo-chan—also develop genuine affection for him. Billy, his creator, remains a figure of both origin and loss.

Over the course of the film, Nana experiences the warmth of a family for the first time. He learns trust and love, but also faces fear and danger. His development culminates in the film’s climax, where he saves Shinnosuke and Shiro from a collapsing building, sacrificing his own life. This moment reflects the story’s central message about the preciousness of life and the pain of farewell.

In terms of abilities, Nana possesses the natural traits of a young spinosaurus: speed, strength, and a powerful roar. He can also use sound to communicate with other members of his species, a trait that becomes crucial when a larger spinosaur responds to his distress call during the final battle. In moments of extreme emotional stress, he loses control and goes on a rampage, demonstrating his raw power. Yet his most notable ability is his capacity for affection and loyalty, which leaves a lasting impact on everyone he meets.