Naoko's Dad appears as a diminutive frog man whose small stature fuels comedic mishaps, such as being accidentally trodden on or falling into a tea cup. He lives with his family in a two-story detached tile-roofed house within a typical Japanese suburban setting. His relationship with Naoko involves standard family dynamics, including an instance where Naoko and her mother spy on him due to behavioral suspicions, as seen in the episode "Dad's Little Secret." He actively participates in household activities, with Naoko appreciating both her mother's meals and his own cooking. His frog-like physical traits generate visual humor and sporadic inconvenience. His role remains a consistent supporting family figure in comedic scenarios.