Ruthless Commander And His Reincarnated Warhorse (Manga)

A thirty-year-old Japanese male is teleported to Japan's warring-era. But instead of being reincarnated as a samurai or ninja, he is now a pony! Cute and spry, he is enjoying is carefree new life but all that changes when he runs into a human who is fighting off a bear attack! The pony dashes and rescues the man, and thus begins his new life... as a warhorse! Denpa Books
(W) Sakashima (A) Nomoto Narita