Koi no gashū (1961)

Taiji (Kawazu Yusuke), who works at Noble Cosmetics, wants to marry his girlfriend Tomie (Kuwano Miyuki), but is having a hard time saving up the money. On a night train, he casually takes a photo of a middle-aged man and a young woman sleeping close together in seats diagonally opposite each other. In reality, the man is Aizawa (Sano Shuji), the section chief at the government agency where Tomie works. Tomie tells Taiji that she is pregnant and wants them to get married soon, so Taiji sends Aizawa the same photo. This is to ask him to buy it...