Yoichi's classmate Takeshi's mother is Yoko Egawa, a familiar cooking expert who appears on TV. However, the meals the Egawa family makes for Yoko, who is busy, are not tasty. Yoichi invites Takeshi to Hinode Shokudo to try some delicious food, but Yoko shows up. So they decide to have a taste contest with sardine gratin!
陽一の同級生・たけしの母はテレビでもお馴染みの料理研究家・江川洋子。しかし、多忙な陽子に代わってお手伝いさんの作る食事は美味しくないようで、陽一は彼に美味しい料理を食べさせようと日之出食堂に招待する。