The owner of Kikuchiya, an Aomori station bento shop where Yoichi's father helped season the bento during his national training period, has come to Tokyo. He laments that he will have no choice but to close the shop if things continue as they are, due to the popularity of Oikawa, a new station bento shop that has opened on the same platform. Not wanting to lose his father's memorable bento, Yoichi takes on the challenge of making a makunouchi bento that surpasses Oikawa's.
陽一の父が全国修業時代に味付けを手伝った青森の駅弁屋“菊地屋”の主人が上京してきた。ところが、駅の同じホームに開店した駅弁屋“及川”の人気に、このままでは店を畳むしかないと嘆き…。
