Pochi, a young male ninja-in-training, joins a team led by Kaoru to retrieve a mysterious magical scroll from Byakuro Castle—a final exam to earn full ninja status. Though his youth reveals itself in moments of gullibility or wide-eyed curiosity, he displays fierce determination and fearlessness in battle. He masters the katana and excels in stealthy infiltration, evading enemy detection, and escaping peril through practiced ninja techniques.

During the exam, he teams up with Sakura but remains detached from her rivalry with fellow trainee Matsuri. The mission tests their resolve against hostile ninjas, mythical beasts, and anachronistic mecha guarding the castle. Pochi’s survival hinges on his adaptability and sharp tactical instincts during these clashes. Details of his origins, family, or life beyond the exam remain unexplored.

His documented story centers solely on this mission, confined to a two-episode original video animation. The narrative does not delve into his past or future beyond the trials of Byakuro Castle.