Regarding Reincarnated To Shima Kosaku summary:

Mikami Satoru, 37 years old, virgin, was stabbed to death. When he wakes up, he'll be reincarnated as a slime --- except not, he was reincarnated as [Shima Kosaku]!?
What would happen if the protagonist of the [Tensei Shitara Slime Datta Ken] was reincarnated as [Shima Kosaku] instead of a slime!?

This special edition release lets you read and compare the original materials of [Shima Kosaku] and [Tensura] that appears in this ultimate imagining, extremely most-discussed book [Tensei Shitara Shima Kosaku].