Takezo Onda is Misako's editor, as well as Sana's when she produces her first book. He is obsessive about his job, and follows Misako around constantly trying to convince her to meet her deadlines. She takes enjoyment in torturing him by waiting until the very last minute to turn anything in, and even then, turning something fake in to make him let his guard down temporarily.
He is almost always around Misako, practically living with her as he tries to obtain her manuscripts. Misako spends most of her time running away from him around the house.