Naomasa Amabuki is a supporting character introduced in the film Zombie Land Saga: Yumeginga Paradise. He is an employee at the Saga Prefectural Space Science Museum Yumeginga, where he works as a brilliant scholar. Naomasa is the husband of Reiko and the father of Maria Amabuki. Reiko is the best friend of Saki Nikaidou, one of the main zombie idols in Franchouchou, establishing a personal link between Naomasa’s family and the group.

In terms of personality, Naomasa is described as a gifted intellectual who can sometimes appear unreliable or scatterbrained, but he possesses genuine courage and will put his own life on the line for the sake of his daughter. This protective instinct defines much of his character. After a key incident in the film, he develops a passionate enthusiasm for the zombie idol Tae Yamada, suggesting a notable shift in his perspective or priorities.

His primary motivations revolve around his family: he is dedicated to his wife and daughter, and his actions are driven by a desire to keep them safe. As a scholar working at the science museum, his knowledge likely becomes relevant when an alien invasion threatens Saga Prefecture, a central plot event in the movie. Naomasa’s role in the story is to provide a human connection to Saki’s past through his wife Reiko and to offer support for the crisis from a scientific or institutional angle. His relationship with his daughter Maria is a key emotional anchor, and his newfound admiration for Tae adds a layer of personal growth, as he transitions from an unassuming background figure to a more actively engaged participant in the unfolding events.