Yoichi and his friends are invited to Tarume's engagement party. Tarume and his fiancée, Shirakawa Rie, are from a Yokohama croquette shop that has been fighting for generations over which family is the original, but their marriage has led to a reconciliation between the two families. However, on the day of the party, the conflict between the two families flares up again, and they decide to have a taste test to decide which family is the original.
陽一たちは垂目の婚約パーティに招待された。垂目と婚約者の白川理恵の家は、代々どちらが本家かを争っている横浜のコロッケ屋だが、2人の結婚をきっかけに両家とも仲直りすることになったという。