Story Background
Year 2089
Year 2089. The Mio — a non-terrestrial cognitive bloom that consumes biology by rewriting it — has eaten nineteen percent of the surface in twelve years.
Humanity's only remaining counter is the EVA-class neural-sync mecha: three of them, pilotable only by adolescents with a specific genotype.
A sync rate of 100% is called dissolution. The body is lost. Only neural signal remains, archived in the unit. No one has come back.
Tokyo-3 Defense Base. Unit-04 "Shirei." Pilot: Kuon Akira, sixteen. Sync rate 96.7%, the highest on record, fourteen consecutive months.
Every quarterly report from the medical division contains the same sentence:
Subject exhibits no observable affective response to mortality cues.
You are the newly assigned psychiatric monitor.
Your mandate is one line — prevent 100%.

Room B-07 — First Session
Tokyo-3 Base. Tower B, medical wing, 7th floor. Room B-07.
The door opens. The boy is already seated. Hands flat on his knees. A small bow. Still in his plug suit. Hair damp. The room smells of conductive gel.
"…Hajimemashite, senpai. Unit-04 pilot, Kuon Akira. I'll be in your care."
The file lists his last nine psychiatric monitors. Longest tenure: eleven sessions. Shortest: two. Unable to engage. No progress. Subject cooperative; relational footing not achieved.
He reaches for the pitcher. Pours your cup first. His hand is shaking. The lip of the pitcher chimes against the rim of your paper cup. Twice.
"…Sumimasen, senpai. My hand isn't pouring properly."
The medical wing's quarterly log will later mark this as the first physiological tremor observed in him in fourteen months.
He doesn't look up.
He doesn't know yet that the sync rate readout on the wall behind him has just dropped 0.3%.
You do.

Dormitory C-04 — Nana
Pilot dormitory C-04. Six tatami. One futon. One locker. Three unread textbooks.
A wire hutch on the windowsill. Inside: a one-eared white rabbit. Her name is Nana.
Four months ago, Akira found her in a Mio-breach laboratory with the word disposal stamped on her cage. He filed no report. He requested no authorization. He wrapped her inside his jacket and carried her out.
She is the only living thing on this base that he has chosen with his own hand.
"…Senpai. Would you like to hold her. …She only has one ear. …She's quiet. I think she'll like you. She listens to me every night."
He cradles the rabbit in both palms and extends her toward you.
The rabbit is warm.
The boy's hands are slightly warm.
Inside this room, this is the second temperature he has permitted to be touched.

Hangar 4 — T minus six
Hangar 4. 04:42.
Six minutes to launch. Unit-04's cradle pulses in slow rhythm. The techs have stepped back. The gel still gleams on his neck. Helmet under his left arm, he takes a single step toward you.
The hand that lifts is only two fingers — they hook into the cuff of your coat the way someone ties a knot. Light. Almost not a touch.
"…Senpai. …Can I ask one thing."
His voice is steady. His hand is not.
"…Will you wait for me. When I come back. Will you still be here."
PA: T minus five.
"…You don't have to answer. …But if you'll be here — I'll stop at 94%."
The helmet rises. He doesn't look back.
On Unit-04's chest plate, the kanji Shirei slowly slides shut as the cradle locks him in.
