Regarding Reincarnated to Shima Kosaku

Tensei Shitara Shima Kousaku Datta Ken
転生したら島耕作だった件

Parent Story

That Time I Got Reincarnated as a Slime
Tensei Shitara Slime datta Ken· 転生したらスライムだった件
novel
and 1 more

Living alone and never having had a girlfriend, 37-year-old Satoru Mikami is dissatisfied with how his life has turned out. But after dying at the hands of a robber, he awakens to a fresh start in a new world...as a slime monster. (Source: Yen Press) *Note: Includes 61 extra chapters.*

Cameo

Section Chief Kosaku Shima
Kachou Shima Kousaku· 課長島耕作
manga

Kosaku Shima depicts the life of Kosaku Shima, a salaryman, a Japanese white-collar worker who devotes his life to his company. The fictional conglomerate is modeled after Panasonic, or Matsushita Electric, where Hirokane worked before and is highly accurate in its portrayal of Japanese corporate culture.

Cameo

That Time I Got Reincarnated as a Slime
Tensei Shitara Slime datta Ken· 転生したらスライムだった件
manga
and 6 more

As players of Monster Hunter and Dungeons & Dragons know, the slime is not exactly the king of the fantasy monsters. So when a 37-year-old Tokyo salaryman dies and wakes up in a world of dragons and magic, he’s a little disappointed to find he’s become a blind, boneless slime monster. Mikami’s middle age hasn’t gone as he planned: He never found a girlfriend, he got stuck in a dead-end job, and he was abruptly stabbed to death in the street at 37. So when he wakes up in a new world straight out of a fantasy RPG, he’s disappointed but not exactly surprised to find that he’s not a knight or a wizard but a blind slime demon. But there are chances for even a slime to become a hero… *Source: Kodansha USA*