ある夜､メイ(多部未華子)が帰宅すると､ナギサさん(大森南朋)から料理を教わる母･美登里(草刈民代)の姿が｡父･茂(光石研)の還暦パーティーで手料理を振る舞い､驚かせたいらしい｡これを機に､3年前に実家を飛び出したままの妹･唯(趣里)と美登里の仲を取り持ちたいメイは､ナギサさんに相談｡すっかりナギサさんに心を許しているメイは､自分もナギサさんについて知りたいと思うようになる｡一方､田所(瀬戸康史)は､メイのことを意識しながらも何かを隠している様子で…｡
Mei returns home one evening to find Nagisa-san giving a cooking lesson to Misato, Mei’s mother. Misato explains that she wants to surprise Mei’s father on his sixtieth birthday with a home-cooked meal. Later, Mei consults Nagisa-san about how to use the occasion to reconcile her mother and her younger sister, Yui, who ran away from home three years ago. Meanwhile, Mei notices that Yuta is hiding something from her, even as he seems to be increasingly attracted to her…
