Karamaru Karakara, commander of the crow ninja squad and native to Karakara village, enforces the will of antagonists Ko'on-no-Kami and Gennarisai with stoic resolve. His relentless campaigns to seize Edoropolis repeatedly falter, undermined by superiors’ flawed strategies or thwarted by heroic counterattacks. Though fiercely loyal to his faction, he balances cunning tactics with flashes of moral complexity—sabotaging underhanded maneuvers in duels or covertly shielding civilians during missions.

A childhood vow to wed Okara anchors his past, a bond fractured by his allegiance to the Ninja Crows. Her sudden return reignites this dormant conflict, tempting him to desert his post. During a pivotal operation to harness a comet’s destructive power against Edoropolis, he clashes with rival Yattaro in a decisive battle. Memories of their brief camaraderie as pizza parlor coworkers surface, spurring Karamaru to spare his foe. This choice sparks his redemption: he rescues Yattaro from collapsing ruins, then allies with him to divert the comet and prevent global catastrophe.

Renouncing his faction, he reconciles with Okara and launches a rival pizza enterprise, fostering a lighthearted feud with former enemies. His journey shifts from unwavering obedience to introspection, then to embracing self-determined principles. Alongside mastering advanced combat techniques and experimental power armor—tools ultimately outmatched by adversaries—his evolution underscores the tension between duty and personal honor.