Fuyuhiko, the owner of Torifune, a long-established yakitori restaurant in the neighboring town, has two sons: Akihiko, who travels around Japan, and Natsuhiko, who trains at the restaurant. Fuyuhiko trusted Natsuhiko more than Akihiko, but Natsuhiko suddenly told Fuyuhiko he was retiring. Akihiko scolds his younger brother for being selfish, but Natsuhiko challenges him to a taste contest.
となり町にある老舗の焼き鳥屋「鳥舟」の主人・冬彦には、日本中を放浪する長男・秋彦と、店で修行に打ち込む次男・夏彦がいた。秋彦より夏彦に信頼を寄せていた冬彦だったが、夏彦は父に突然引退を告げた。
