The protagonist, Ishigaki Naokaku, a child of a lower-ranking samurai, gains admission to the prestigious Hagi Meirinkan Academy—an elite school exclusively for children of high-ranking samurai from distinguished families. Unwavering in his commitment to the bushido he believes in, Naokaku charges ahead with relentless determination, turning everything around him upside down. Though initially bewildered by his unorthodox ways, both his classmates and the adults in his life gradually find themselves inspired and transformed by his indomitable spirit.