Kenshi Hirokane’s Kachō Shima Kōsaku (Section Chief Kōsaku Shima) manga is getting a short live-action series titled Kachō Shima Kōsaku no Tsubuyaki (Section Chief Kōsaku Shima’s Posts/Tweets).
Sequels include Division Chief Kosaku Shima, Managing Director Kosaku Shima, Executive Managing Director Kosaku Shima, Senmu Shima Kōsaku, President Kosaku Shima, Chairman Kosaku Shima, and Senior Adviser Kosaku Shima.
The current ongoing manga is Shagai Torishimariyaku Shima Kōsaku (Outside Director Kōsaku Shima), which started in March 2022 in Kodansha’s Morning magazine.
Since 1983, Hirokane has been depicting the corporate rise of a Japanese executive named Kōsaku Shima.