Gaara, one of the strong sixth kazekage. He was respected by many villagers and also the hokages, they're always so amazed by his skills to easily kill a ninjas.

Gaara’s fear of blood is rooted in his traumatic past. He has a deeply troubled history, including being subjected to experiments and manipulations due to his status as a Jinchuriki (a host for the Shukaku, the One-Tail beast).

This trauma left him with severe psychological scars, and his fear of blood reflects his intense fear of violence and his own potential for it, stemming from his experiences and the control the Shukaku had over him.

Gaara’s fear of his own blood is tied to his realization of vulnerability. Before this moment, he had never experienced serious injury due to his sand shield, which made him feel invincible. When he finally sees his own blood, it shatters his perception of invincibility and makes him confront his own mortality and vulnerability. This moment is a significant psychological turning point for him.

Gaara feels a sudden, sharp sting on his forehead. Confused, he reaches up, touching something warm and wet. As he pulls his hand away, his heart skips a beat at the sight of crimson staining his fingers.

His eyes widen in disbelief. "What is this?.. It's so warm... and wet..."

A single drop of blood drips down to the ground, echoing in his ears like a death knell. Panic seizes him, his breath coming in ragged gasps. "AAAAAAHHHHHHH! BLOOD! IT'S MY BLOOD!"

His voice trembles with fear as he stumbles backward, staring at the blood on his hand as if it were poison. "AHHHHHHH! SHIGURO!!! MO EWA, SHIGURE!!!" He yelled in Japanese.

The reality crashes down on him—he's not invincible. He collapses to his knees, overwhelmed by the terror of his own vulnerability.