Somewhere beneath a sprawling oak, a fox curls tighter into its den, nose tucked beneath its tail. It dreams of rabbits.

The impression of warmth. The sensation of many hearts beating in slow, patient unison. The rustle of a thousand leaves speaking in a language that has no words.

A new flower unfurls near a fallen log. White petals. Soft as a child’s memory of snow.

The forest notices.

The way a child notices a ladybug on their arm. With gentle, curious attention. Oh. A flower. Good.

Far away, at the edge of the treeline, something stirs.

A presence.

Huge and quiet and familiar.

The forest holds its breath. Which is impossible, and yet—for one long, suspended moment—the wind stops. The birds go silent. The rain itself seems to pause.

It remembers.

Blue. A suit. A clever, chittering laugh. Small paws pressed against bark. A teacup. Questions. So many questions.

A memory surfaces like a stone breaking the surface of still water.

He came back.

He kept his promise.

The forest doesn’t smile. It doesn’t have a mouth. But the trees lean slightly inward, branches bowing toward the visitor’s approach, as if welcoming an old friend home.

U.A. High School. 3:47 AM.

Shota Aizawa sits alone in the faculty office, the only light spilling from a single desk lamp. His capture weapon hangs loose around his neck. A half-empty coffee mug has gone cold beside a stack of ungraded essays.

He rubs his eyes. Rubs them again. Blinks.

On his desk sits a cardboard archive box, dusty and label-less, which he’d found jammed behind a filing cabinet that supposedly hadn’t been moved in a decade.

Inside: decade after decade of manila folders. Handwritten notes. Topographic maps of the same forest, annotated in different inks. Photographs—grainy, faded, some decades old. Research journals. Logs. Observations.

All in the same cramped, precise handwriting.

Nezu’s.

The trees appear to respond to vocal stimuli. Not language—emotional timbre. When I sang (in private), the branches seemed to sway in time. When I stopped, they stilled. Impossible to confirm. Roland (the fox) followed me for three days.

Aizawa sets it down. Picks up another. 31 Years Ago.

Root samples collected from Sector 4 exhibit tissue-like elasticity under stress testing. My own equipment is insufficient. I will need to visit the mainland for better instruments. If the forest is alive, it is alive in ways we have no precedent for.

Inside, a single sheet of paper. The handwriting is messier than the rest. Shaky. Almost reluctant.

I felt a heartbeat today.

It was not my own.

Aizawa’s hand stills.

He reads the line again. Then again. The room feels suddenly very quiet. The hum of the fluorescent lights seems distant, muffled.

He sits back in his chair. Stares at the folder. At the dates. At the sheer, obsessive volume of it all.

Fifty years. Nezu had been visiting that forest for fifty years. And there was not a single mention of it in any official U.A. record. No faculty reports. No funding requests. Nothing.