古河 秋生

Akio is Nagisa's father and the husband of Sanae Furukawa. He looks deceptively young, and is shown to be an avid smoker. Although he often talks and plays rough (in addition to having a reckless personality) he is kind and sympathetic. His child-like side makes it easy for kids and adults alike to befriend him.

He runs the Furukawa Bakery with his wife Sanae. Akio shows how much he is in love with his wife, and how much he cares for her too. In his spare time, Akio plays baseball with children in the small park next to the bakery, and indulges in the Gundam and Star Wars fandoms. He is often the victim of Sanae's bread, frequently insulting her bread while unaware she is actually in the room, and consequently having to eat the bread in front of her while claiming that he loves it in order to pacify her hurt feelings.