Kan Ueda

Jida-geki by Santaro Marune.

Mitsuo the Counselor's son marries writer Miyoko, however a tender romance blossoms between Miyoko and Mitsuo's sister Kaoru. When the family falls to bankruptcy, heartache ensues; Miyoko's illness worsens and she is sent to a sanatorium, separating the lovers. Based on a story from Tales of Flowers by Nobuko Yoshiya