Hitoe is 34 years old. Her husband is overseas on a business trip, and she wanders aimlessly around town every day, filling her idle time with alcohol. Masaru is 48 years old. A train conductor. He gave up on his dream of becoming a driver after failing the national exam three times. The two meet each other while they have families.

Hana's boyfriend Shoichiro suddenly leaves her, and now she is in a relationship with Akatsuki, Shoichiro's best friend. Hana keeps waiting for Shoichiro while feeling the sea breeze and the back of the man who left her.