Section Chief Kosaku Shima

Kotaro Tani, a crazy job-hunting student, reveres the "Shima Kosaku" series as a holy book and has read it over 1,000 times since he was a child. One day, I suddenly realized that I had been reincarnated into a world where the island cultivation I had always dreamed of actually existed! Tani is filled with anticipation, but what awaits him as his boss is Terutsune Konno, the most evil "child villain of the series"! Will he be able to survive the turbulent 1980s filled with power harassment and meet Kosaku Shima? (from mangadex)

Hatsushiba Electric president Kiichi Nakazawa, who has been Shima’s mentor since Nakazawa was Shima’s boss in the sales division, transfers Shima to Hatsushiba Trading, the firm’s affiliate, to keep Shima from being involved in a factional power struggle that seems sure to erupt within the company when Nakazawa resigns from his post. Shima starts off as the representative executive director, making a deal with a wine producer in France. He flies between Japan, France and England to find the best wine and to sell cases at the best price possible. As always, Shima gets help from various attractive women – his subordinate Kumiko, with whom he has had a long, ongoing affair; Kumiko’s mother, who has a broad network of rich people around the world; and a mysterious hostess at a cosy Shinjuku bar who knows who’s who in the wine business. (Source: The Star).

Kenshi Hirokane together with Kosaku Shima reviews films and restaurants.

The year is 1990. Kosaku Shima, at this point still just a section manager, meets a woman at a bar. However, when he wakes up, he finds that the woman has been strangled. With the help of his detective friend Kyusaku, he sets out to find the real killer and prove his innocence.

A spin-off of Shima Kousaku, where the main character is a knight in another world.

After being killed by a passing robber, a normal 37-year-old guy finds himself reincarnated as Kousaku Shima in 1984. *Note: The volume contains the only 2 chapters of the spin-off, 2 chapters of the manga Kachou Shima Kousaku, and one chapter of the manga Tensei Shitara Slime Datta Ken*

109 different mangaka depict their daily lives since COVID-19 started.