039. Rightarm of the Giant

Cornered by an enemy he can barely register, Sado stands guard over Karin while cursing his blindness to Bulbous G's movements. Karin, who sees the beast plainly, proposes a division of labor: she will announce every strike while he supplies the speed and force. The tactic keeps them alive through several near misses, until a swing catches Sado and flings the pair across the field. When Karin's soccer friends stumble in and mistake the blood for a beating, she throws herself over them to spare them the Hollow's next blow.

In that instant Sado recalls his late grandfather, Oscar Joaquin de la Rosa, who once begged the boy to stop returning hurt for hurt and to aim his size and power at shielding others instead. Resolving that his fists now exist to guard people, Sado drives another punch home and pleads for strength, and a surge of energy erupts through the Hollow's flank, shearing off its arm as his own right arm changes shape.

Karin and Sado pair up, her sight guiding his blind counterattacks against Bulbous G. The Hollow wounds Sado and threatens Karin's arriving friends. A flashback reveals Oscar's plea for the boy to protect rather than harm. Sado awakens Brazo Derecha de Gigante, blasting the arm off the Hollow.

The chapter was adapted within Episode 12, A Gentle Right Arm, and sits in the Agent of the Shinigami arc of Volume 5. It marks the debut of Sado's signature right-arm power, which the series later identifies as a manifestation of Fullbring.