Chouetsu-sha To Natta Ossan wa My Pace ni Isekai wo Sansaku Suru - Vol. 1 Ch. 2

[MangaDex]

 

[Toastility]

Wow an overpowered isekai protag that didn't just let people call him something amazing! Guess it makes sense that a adult would me more insistent on that rather than a teenager who just lets it happen