Sugimoto Terufumi[]
Sadatoki has a great deal of respect for his older brother Terufumi. He thinks that Terufumi is cool no matter what he does.
Onoda Sakamichi[]
Sadatoki said that he heard stories of Onoda from his older brother, so he was looking forward to meeting him. He was not discouraged by Onoda's small stature, saying that he is "small but strong." Sadatoki admires Onoda and calls him "Onoda-san," much to Onoda's excitement and embarrassment.