"Section Chief Shima Kosaku" is a vintage manga series by Kenshi Hirokane that follows the professional and personal life of Shima Kosaku, a dedicated and ambitious middle manager in a large Japanese corporation. Known for its realistic portrayal of corporate culture in Japan, the series explores Shima's challenges and successes as he navigates office politics, handles work crises, and strives for career advancement. With a blend of humor, drama, and keen insights into corporate dynamics, "Section Chief Shima Kosaku" offers a compelling glimpse into the world of business and the daily struggles of its protagonist to balance ambition with integrity.
 
This is the manga series, volumes 1-17, in Japanese. Good condition.