Is Kono Koe wo Kimi ni coming back?

A 46-year-old stubborn math teacher has trouble talking with others. His wife left home with her child being fed up with such a boring husband. One day, his boss tells him to go to a speech class but he can't get along with a female instructor and soon quits the class. A few days later, the two meet again at a reading class on the outskirts of the town.