The main character of this work that transforms into Ultraman Decker. He is 20 years old. He worked at a rice cracker shop run by his grandfather and lived a peaceful life with regular customers and neighbors. He is a cheerful and tuned young man, but he is a good young man who is caring and kind. He has a personality that he cannot help reaching out when he sees a person in need, and he is a very dedicated personality who works harder than necessary on what is in front of him.
When the daily life is destroyed by the invasion of Sphere, he does not care about danger and gets the "light" of Decker while confronting the enemy in front of him. Despite being puzzled by becoming Ultraman, he joined the newly reorganized expert team "GUTS-SELECT" to actively accept the fact and use its power for everyone, and a young team as a new member. Face the threat of Sphere with the members.
