Yousuke Sakakibara

Yousuke Sakakibara is Kouichi's single father. He is a college professor, and he is going to India for a year. His face in the anime is never revealed.

Personality
He seems a cheerful father but also serious.

Appearance
In the manga, he has black hair, as well as black eyes.

Plot
Yousuke's face is never revaled in the anime till now. He regularly calls up Kouichi & complains about the hot weather.