Chainsaw Man: This Affection System Is Toxic!

[Chainsaw Man fanfiction + mystery and puzzle-solving + multiple heroines to win over + all sweet, no angst]

He transmigrates into the world of Chainsaw Man and even becomes Chainsaw Man himself.

Su Xiao knows from the start that in the original story, Chainsaw Man will be used by Makima, eaten, and stripped of everything.

Just as he despairs, the System activates: [View the affection levels of all female characters. Reach 100% to permanently gain their abilities.]

The first time Makima sees him, she calls him by name: “Su Xiao.”

His affection level instantly hits 99.99%.

But when she sees the chainsaw cord on his chest, it plunges to 30%.

“You're not him.” She turns and leaves.

Who is “him”?

Why does Mitaka freeze the moment they meet?

Why, when Reze is rescued by him, are her first words “You finally came,” before tears stream down her face?

Why does Su Xiao see scenes that should not exist every time an affection level rises: a heart offered on a beach, a name cried out among ruins, someone whispering “Don't forget me” in his ear?

Su Xiao begins to notice that something is wrong…

The System says his affection level with Makima is only 30%, yet her eyes clearly hold the tenderness and pain that should only appear at 99%.

When Mitaka sees the cord on his chest, her fingers tremble slightly, as though she is struggling not to touch something.

Every one of them looks at him with the eyes of someone seeing “a person from the past.”

But whenever he asks, they all fall silent.

The affection numbers displayed by the System keep changing, but Su Xiao gradually begins to feel that the secrets those women are hiding matter more than their affection levels.