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.

Shima Kousaku no Jikenbo was serialized as part of a celebration of Morning's 35th anniversary.