Devoted Husband Miyamoto

Yohei is a middle school teacher married to Miyoko. For the first time in 25 years, they begin to live by themselves after their son marries and moves out. One day, Yohei finds divorce papers which Miyoko keeps hidden, but he doesn't have the courage to ask her about it and agonizes over the papers. His involvement with students and associate in a cooking class, allows Yohei to recognize the concept of an ideal family. He takes new first steps with Miyoko.
(Source: AsianWiki)
~~ Adapted from the novel "Family Restaurant" (ファミレス) by Shigematsu Kiyoshi (重松清).