Null's buried past returns — the brother he lost, the brother he failed.
Scene 1 — Null collapses
After the rooftop events, Null suddenly drops to one knee, gripping his head.
Null:"Not… again…"
Gray catches him before he falls.
Gray:"Null! Oi, stay with us!"
Null's eyes flicker gold-black — and a locked memory breaks open.
Scene 2 — Flashback Begins
Black-and-white.
A destroyed underground training hall.
A young boy, maybe 1–2 years older than Null, stands alone.Barefoot.Bruised.Breathing calm.
Three adult fighters are unconscious around him — all defeated in seconds.
A scientist walks in.
Scientist:"He has no name.But he outperforms every subject.He learns faster than a machine."
Younger Null watches from a distance.
Younger Null:"…He doesn't talk?"
Scientist:"He talks only when necessary.But he listens to you."
The boy slowly turns toward Null.Eyes tired, lonely.But focused only on him.
Scene 3 — Their bond
Quick flashes:
Null and the boy sparring — the boy wins every time but holds back.
Null teaching him how to smile ("Just try it, bro.").
The boy silently sitting beside Null during meals.
Null talking, the boy listening, always calm.
He never told his name.
Null just called him:
"Hyung."(Big brother.)
The boy touches Null's shoulder — meaning he accepts it.
Scene 4 — The Tragedy
Alarms. Fire. Chaos.
The facility collapses. Scientists run.
Null grabs his brother's wrist.
Younger Null:"Hyung! Don't let go!"
But explosions shake the hall.A steel pillar falls between them.
Null is dragged away by workers.
Through the smoke, he sees his brother standing alone — calm, unmoving — as flames surround him.
The last thing Null hears is the boy's voice:
"Survive."
Then everything goes dark.
When Null wakes up outside—
His brother is gone.No body.No trace.Only the training tag he once wore.
Scene 5 — Present Day
Memory fades.
Null wakes up breathing hard.
Gray and Blaze stare.
Gray:"That was your past… wasn't it?"
Null wipes his face.
Null:"…My brother.The one I left behind."
Blaze folds his arms.
Blaze:"You still think he's alive?"
Null doesn't answer.But his fist shakes.
Scene 6 — Final Scene: The Brother Today
A dark chamber.
Chains glowing.
A boy — now a young man — sits calmly, restrained.Expression empty.Stronger than ever.
The TRUE Leader stands before him.
True Leader:"Your little brother is alive.Soon, you will face him."
The older brother opens his eyes — sharp, emotionless.
He whispers only one line:
"Goo-Gun Null…What kind of man have you become?"