The person he respects the most is Koji Tamaki. Naotaro's mother was also a famous singer and was in the same production as Koji Tamaki, so they had a very close relationship. Naotaro has also known Koji Tamaki since he was a high school student. Naotaro appears as a guest on Koji Tamaki's TV show and sings with him. In the program, Naotaro told Mr. and Mrs. Tamaki that he wanted to be with them all day today.