Sakunosuke Oda

Set in the 1860s, the final years of the Tokugawa Shogunate, The Fireflies focuses on Tose (Awashima Chikage), the mistress of the Teradaya, a small inn in the Kyoto suburb of Fushimi. She does not have an easy life. Her husband, Isuke (Ban Junzaburo), is a wastrel who fancies himself a kabuki singer and who is obsessed with cleanliness. Her mother-in-law, Sada (Miyoshi Eiko) dislikes her because of her humble origins (her family are farmers) and because she fears that she will inherit the inn instead of Sugi, her daughter. Sada's hopes for Sugi, however, are dashed when she runs off with a con artist and leaves her child behind for Tose to take care of. When Sada becomes seriously ill, it is Tose who nurses her. On her deathbed, Sada asks her daughter-in-law's forgiveness. Meanwhile Isuke spends most of his time with a mistress he has taken, forcing Tose to manage the inn by herself

​Ryukichi, the pampered heir to a cosmetics wholesaler, abandons his wife and child to pursue a scandalous affair with a famous geisha named Choko. This betrayal leads his father to disown him, leaving the unskilled Ryukichi with no way to earn a living. To keep them afloat, Choko is forced to continue working as a geisha while secretly scraping together a nest egg to start their own business. However, Ryukichi remains trapped in his hedonistic lifestyle, eventually squandering Choko’s hard-earned savings on his own self-indulgence.

In 1906, after finishing a tough migrant job in the Philippines, Takichi has returned to Japan. He starts to work as a rickshaw driver, but his lover had died of an illness, leaving a baby girl, Hatsue. Hatsue grows up beautifully and falls in love with Shintaro. But Takichi objects to their relationship...

A middle school teacher falls in love with a hostess and they end up quickly getting engaged and moving in together.