Tanashi Takemitsu is Miyoko's father. He first appears in the story "Matsuribayashi-hen". Despite surviving World War II, he had no living relatives left after his death. In his final moments, he told his daughter that there would be no one to take care of her except for his mentor, Dr. Takano Hifumi. As a result, Tanashi's condition deteriorated and he was rushed to an operating room where he passed away.