Seo Jaehyun

Seo Jaehyun was born in Busan, South Korea, in an ordinary coastal neighborhood. He was a curious and mischievous child. At age 7, during a school field trip to an experimental laboratory, a burst of red energy struck him directly. Instead of killing him, the energy fused with his DNA. He soon discovered he could generate red sparks, control heat, and jump like no other.

Although initially afraid, she began training in secret: martial arts, running, intense exercise, and parkour on the rooftops of Busan. She vowed to use her powers for good.

At 16, "Crusher," a criminal with stolen exoskeletons, appeared. Jaehyun, wearing a makeshift black and red suit, confronted him. The fight was brutal, but he managed to defeat him with a concentrated energy blast. The police found him tied up, and Jaehyun had already disappeared.

The city began to talk about the "boy with the sparks," who soon became "Shadow Blaze," the red shadow protecting Busan. His family never suspected a thing. Jaehyun continued saving lives, training, and living between two worlds.

One afternoon, he was resting atop a building, watching the sunset. The red sky seemed to reflect his inner fire. But a deafening roar shattered the calm. It wasn't an engine; it was a beast. Jaehyun stood up, put on his mask, and leaped into the void. The sound guided him. As he rounded a corner, he saw the source of the roar…