A portrait drawn by literary giant Osamu Dazai (1909-1948) has gone on display for the first time since it was created more than 70 years ago.

The Japanese novelist’s dark-hearted comedies are at once unhinged and brilliant. Osamu Dazai, 1924. Where to begin the story? It’s tempting to start at the end—on the morning of Osamu Dazai ...