One day, the world is reset into a digitized magical game.
Lin Che, an ordinary young man, awakens with a heaven-defying, BUG-level talent from the start: [Insight into All Things]. He sees everything as code and every law as an exploit. Leveling up, fighting monsters, forming alliances, overthrowing the rulers of the old world: he thinks he's following the ultimate underdog comeback script, and every step is exhilarating.
But at the end of this game, what awaits him is the sorrowful echo of a world that has already perished: [Ashen Domain].
Every step of his growth has been watched in silence by another pair of eyes: [Jin], a divine-seed survivor from the apocalypse.
It turns out that this power-fantasy-style trial was only a cold prologue. His true mission is to be the only "variable" and witness an unalterable epic tragedy in which the heroes fall one by one. Here, every sacrifice is etched into the heart, and every farewell tears at the soul. Hope flickers like a candle in the wind, and he is only a powerless bystander.
When the nightmare that devours worlds, [Nightmare], reveals a face astonishingly similar to [Jin], and the truth behind every sacrifice points to a paradox spanning time and space...
Can a world's BUG correct the universe's inevitable lament?
Can the testimony of an ordinary man give a lost civilization one final meaning?
Welcome to this... final symphony, composed of memories and sacrifice, with the ashes of an entire world at stake.
