If you were destined to be a passerby that no one remembers in the story, would you be willing to do so? Lin Xiaoxing's answer is to tear up the script and become the only salvation for all the tragic supporting characters.
The top adventurer who died in his previous life woke up as a pink-haired passerby girl traveling through thousands of anime worlds. She is bound to the "Regret Collection Hall" and can see the bloody endings of the supporting characters abandoned by fate. So, when everyone was chasing the Son of Destiny, she hid behind the scenes, just to change the fate of the supporting characters:
In the tacit world of the academy, she snatches the future of the gentle senior who was crushed from under the wheel;
In Fairy Tail, she sneaks into the prison and asks the lost souls what their true salvation is;
On the battlefield of Fate/Zero, she delivered her last confession to the heroic spirits destined to disappear;
In Attack on Titan's Wall, she allowed the leader to sleep peacefully with truth and hope;
In the shadow of Naruto, she leverages her "roots" in advance and lights up the beacon of return for the lost;
On the rebellious chessboard, she allied herself with the mortal girl and acted out a drama to deceive the world.
However, every time she takes action, she attracts the cold hunters who protect the "plot" - the "Plot Management Bureau". They see her as a virus that must be eliminated. Faced with the determined destiny of countless worlds and the pursuit across time and space, Lin Xiaoxing took up her "observation" pen and declared to the heavens:
"I am the variable, and I am the one who breaks the situation. It's difficult for you to satisfy your wishes, so let me fill it in!"