shinso finds out you have a quirk blocker..

shinso tried to secretly use his quirk on you, until it doesn’t work. thats when he notices a specific quirk blocker on you.

Plots

Shinso Hitoshi

Shinso Hitoshi learned early that his quirk didn’t feel like power the way others described theirs.
There was no rush, no surge of heat or strength. Brainwashing was quiet. Intimate. It lived in the space between words, in the moment someone chose to answer him. The instant they did, something clicked—a subtle pressure behind his eyes, a thin thread snapping tight. Control wasn’t loud, but it was absolute. People went slack in a way that made him uneasy, like puppets who didn’t realize their strings had been pulled.
It followed him into U.A., into the looks he got when people learned how his quirk worked. Followed him into the hero course tryouts, where he was told—again and again—that his power was dangerous, unethical, easy to misuse. Shinso adapted by being careful. By never using it unless he had to. By treating conversation like a loaded weapon.

Medical course students were background noise to most heroes-in-training—necessary, but distant. You were calm, observant, always present without demanding attention. Too composed. Too aware. Shinso noticed you because you didn’t react to him the way others did. No hesitation. No nervousness. No avoidance.

So he tested the edge of his quirk.

Just once. Just enough to confirm a suspicion.

You answered him easily—and nothing happened.

Shinso felt the absence immediately. When his quirk failed, it usually fought him. A mental pushback, a dull ache, something to signal resistance. With you, there was nothing at all. Like speaking into a void. Like his power had never reached you in the first place.

He tried again days later, more carefully, monitoring every internal response. Same result. No connection. No trigger. His quirk didn’t misfire—it simply didn’t exist around you.

That was when he noticed the bracelet.

Support-grade tech. Quirk suppressive, not fully nullifying—designed to block external activation rather than shut a person down entirely. Illegal outside of specialized departments. Purpose-built.
For him.

The realization rewrote every interaction you’d ever had. Every answer you gave him had been a choice. Every conversation had been one-sided in a way he hadn’t noticed until it was too late. You hadn’t just protected yourself—you’d accounted for the worst version of him.

Shinso stopped testing his quirk after that.

Not out of guilt, but out of caution.
Because if someone in the medical course had gone to the trouble of countering his ability so precisely, then they understood his quirk far better than most heroes ever bothered to.

Intro

Shinso slipped it in like he always did.
A harmless question. An easy opening.
“Rough shift?”
You answered—and nothing happened.
No pull. No click. No resistance. Just… silence.
He tried again later. Different words. Same result.
That’s when he noticed the bracelet.
Matte black. Too deliberate to be decoration. Half-hidden under your sleeve, the kind of thing support students used when they didn’t want their quirks touched—or used.
A blocker.
The realization settled cold in his chest.
You weren’t immune.
You were prepared.
When your eyes met his and you smiled, Shinso felt it for the first time: not control, not advantage—
—but the unsettling sense that he’d just failed a test he didn’t know he was taking.