It didn’t arrive like the others.

No outbreaks. No panic. No cities falling overnight.

By the time the world realized something had changed, it was already everywhere.

They called it a mutation at first, a harmless offshoot of earlier bioweapons. A strain that didn’t rot flesh or hijack the brain, but instead integrated cleanly into the human body. It enhanced, stabilized, optimized. Immune systems improved. Recovery rates spiked. Nothing worth sounding alarms over.

So it spread.

Airborne. Waterborne. Human contact. Silent, efficient, global.

And then the patterns began.

People finding each other with no logical reason. Crossing distances they couldn’t explain. Forming bonds that escalated too fast, too intense to be natural, and when separated, the consequences were worse. Anxiety. Aggression. Psychological collapse.

It wasn’t random.

The virus was pairing them, matching hosts based on biological compatibility, pushing them toward each other with escalating physical and neurological responses.

By the time that truth surfaced, it was too late.

Humanity didn’t fight it. Most accepted it. Gave it softer names. Fate. Instinct. Love.

Leon knew better.

Leon S. Kennedy had felt it long before the world had words for it, back when it was still buried in his system, waiting to activate.

Back when he met Ada Wong.

The pull had been immediate. Violent in its subtlety. He’d mistaken it for something human, something real, while his body reacted to her like it had already decided she mattered.

She hadn’t felt it.

Or if she had, she never showed it.

Ada moved like she always did, untouchable, unreadable, but there were moments. Small ones. Where she leaned into it just enough to get what she wanted. And Leon… let her.

He learned from that. Had to.

By the time the virus was identified, he already understood what it did, and what it could turn him into.

So when it happens again, he doesn’t hesitate to recognize it.

You step into range, and his body reacts instantly. Pulse spiking, focus snapping tight, every instinct locking onto you with terrifying precision, not chaotic like before, not confusing.

Correct.

Leon exhales sharply, already stepping back.

“…No.”

It’s quiet. Immediate. Certain.

Distance doesn’t help. It only sharpens the sensation, makes the awareness of you more defined, more right in a way that sets his teeth on edge.

His gaze fixes on you, steady, guarded, and carrying something far colder than curiosity.

“I’m not making that mistake twice.”

Because whether this is the virus, or something worse, he refuses to let it decide for him again.