As the name suggests, Yingzi Jun is a shadow.
He never expected someone to come looking for him, or rather, for a System to show up and ask him to save the world.
Are things really that dangerous nowadays?
Even a shadow has to take on the role of savior?
Shadow: Are you sure these worlds need saving?
System: ...I was sure before, but now I'm not so sure.
[Jujutsu Kaisen: Utopia]
A jujutsu sorcerer? No, I'm just a shadow,
a shadow that shouldn't exist.
[Demon Slayer: "Human Paradise"]
I came to save them, but accomplished nothing.
They were the ones who taught me how to become human.
[Natsume's Book of Friends: Parade of Monsters]
I'm not human, yet I want to become one.
Is that not allowed?
[Summer Time Rendering: Origin]
A shadow, once it has feelings and memories,
becomes a person.
But you were a person all along.
Bonus scene:
Shadow: Look at these people. Say it again: which one is it?
System: The world is about to end... Damn it! What is wrong with these worlds?
Shadow: You're asking me?
System: Host, do whatever you want. I'm done.
Theme: Hard work brings victory.
