The bulletin board had twelve students clustered around it before the first bell, which was the typical distribution for a morning when something significant had been promised by the morning prior's class-wide communication.
Yami arrived at the back of the cluster and waited.
He could see the board's general layout from his position — the matchup list in Aizawa's handwriting, which had the specific character of a person who wrote efficiently and didn't care what it looked like in the process. Names in pairs, mostly. Two students to one teacher. The practical exam format he'd known was coming: hero course teacher vs. students, objective to escape the arena, restraining the teacher a secondary option available in theory and executed in practice by approximately no one.
The cluster shifted as people confirmed their own matchups and dispersed. He saw Bakugo's back stiffen at the board — he was paired with Todoroki against All Might, which was a match that Bakugo was going to treat as a personal challenge regardless of the objective and which All Might was going to treat as the opportunity to demonstrate to two people he cared about that caring and holding back were not the same thing.
Momo and Jiro appeared to be against Midnight, which was a matchup that played to both their abilities and which Midnight would treat as performance.
Kirishima and Sero: Cementoss.
He got to the board.
His name was on it once. Not in a pair.
Ichigo Yami — vs — Eraserhead.
Solo.
He looked at it for the two seconds it took to confirm he'd read it correctly, then moved away from the board.
The library at four-thirty had three other students in it — none of them from 1-A, none of them paying attention to the corner table where he'd spread the notes he'd been building for forty minutes. The notes were on paper, not his phone, because the phone had the social obligations of a connected device and the paper did not.
The calculation was simple and produced a result he'd been avoiding since he'd seen the board.
Aizawa's Erasure: sight-based, sustained, requires direct line of sight with open eyes. Cannot erase a quirk that is not actively being used. Affects quirk-derived abilities by blocking the quirk's operation at the source.
OFA was a quirk. Under active Erasure: the power output that normally ran through him at three-to-four percent would reduce to whatever the base physical enhancement was without quirk amplification, which the system and his own experience both suggested was approximately half. Two percent effective output. Enough to be marginally above civilian peak. Not enough to close distance against a pro hero who knew he was coming, in an arena Aizawa had selected and would already have mapped.
The Shock Absorption fragment: quirk-derived. Under Erasure — disabled. The passive impact reduction he'd built his defensive strategy around for two months went to zero the moment Aizawa looked at him.
The Bloodcurdle fragment: also quirk-derived. Also disabled. The new tool he'd tested two weeks ago, the one that required blood contact and had a two-to-three-second window, was equally unavailable.
Base stats: STR 16, AGI 15, DUR 15, WIL 13. Above civilian average, below what any pro hero had developed across years of active use. Aizawa's stats were not his area of confident knowledge — the system didn't give him other people's numbers — but the observable facts were: underground hero, twenty-plus years active, combat specialist, survival record in high-threat environments. The gap was real.
The capture weapon: the yellow scarf, the hardening transformation that made it a restraint mechanism, the range it could be deployed at. Aizawa's preferred combat pattern was the scarf first — restrict mobility, then close. Knowing this didn't change the physical reality of it.
The escape objective: a gate at one end of the arena. The arena layout was unknown, which meant the gate's position was unknown, which meant every second in the arena was a second of navigating blind against someone who was not navigating blind.
He looked at the notes.
What does Aizawa NOT know that I do?
He wrote the question and underlined it and sat with it.
Aizawa knew about the resurrection. Knew about the strength enhancement. Had filed a report that contained the words capable student, hiding something, compartmentalizing. Had designed this matchup specifically — had requested it, which meant the matchup was itself a tool in an investigation that had been running since the AP test softball.
He wants to see what's underneath when the powers are gone.
Not a trap. An audit.
He was going to walk into an arena with no fragments, half-strength OFA, and a pro hero who had been studying him for two months specifically to prepare for this encounter.
The thing Aizawa didn't have was meta-knowledge of Aizawa's own patterns — the specific tells, the timing of when he blinked, the commitment points in his combat sequences where a response window existed that his opponents generally didn't survive long enough to exploit.
The thing Yami had was everything he'd seen from the outside of this fight, from a medium where the editorial decisions of a storytelling team had resulted in specific moments being chosen as visible. Those moments were real — the events had happened — but they were not complete. They were selected.
He had partial information about a person who had decades of experience and complete information about the environment.
It's not enough, he thought.
And then: it's what I have.
He was writing the third page of notes when the library's ambient sound changed — a new presence in the architecture of the room, the specific quality of someone who was where they'd decided to be and whose position in a space was never casual.
Aizawa was returning a book to the reference section. He was in civilian clothes — the bandages from his USJ injuries were gone, the arm at its full range of motion, the hair loose in the way it was when he wasn't in costume. He didn't look at Yami's table.
His scarf was not present.
But the way he moved through the library — the sightlines he naturally maintained, the specific awareness of the room's geometry that lived in the way he oriented his body while doing something else — communicated that the scarf's absence was a matter of dress code and not of disposition.
He shelved the book. Turned. Walked toward the exit, which took him past Yami's table at approximately three meters.
He didn't slow. Didn't look at the notes.
But his hand, at his side, shifted slightly — the fingers moving in the way they moved when the scarf responded to conscious input — and then stilled.
The gesture lasted half a second. Yami caught it.
A tell. Or a communication. Or both.
Three days, Yami thought. And he just told me the scarf is always present even when it isn't.
The library door closed behind Aizawa with the sound of a well-maintained hinge.
He looked at his notes. Added a line at the bottom of page three:
He wants me to think about the scarf. That's the surface layer. What's underneath it?
The library's afternoon quiet resumed. Outside the window, the UA campus had the quality of a place that was three days from something significant — the specific readiness energy of an institution that ran on scheduled events.
He had three days to find the thing that Aizawa's investigation couldn't reach.
The paper in front of him had twelve lines of analysis and none of them were enough and he was going to have to find the one that was.
He picked up his pen.
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