[Second dimension + Ultraman-like + Nexus' passion + growth-oriented protagonist]
A meteorite, two souls bound by fate.
His name is Li Yuye, a high school student who accidentally traveled to another world. His name is Zero, the last survivor after the collapse of civilization. When Li Yuye accidentally touched the meteorite fragment that sealed the core of Zero's consciousness, the fate of the two people was intertwined.
The Dimensional Beast, the ultimate weapon created by Zero's civilization, is now out of control and is devouring dimensions one after another. Li Yuye was forced to become the host of the artificial dimensional beast "Avenger", and had to endure 100% simultaneous pain every time he transformed. The scars of the battle will disappear under Zero's treatment, but the fear will not, the confusion will not, and the voices questioning oneself repeatedly in the night will not.
He doesn't want to be a hero. He just wanted to return to his original world and continue living the life of an ordinary high school student. But the dimensional beasts won't wait for him to be ready, and the people of this world won't wait for him to be ready. When the sky cracked open again, when the blue-white light surged out of his chest again, he had to make a choice - to escape or to fight.
This is not a story about courage and glory. This is a story about cost. A story about an ordinary person learning to pay the price for his choices in fear and pain.