The moment the flip phone was inserted into the slot on his belt—
Red vein-like lines spread across Izuku Midoriya's body, tracing the outline of his frame.
Then—
A flash of silver light burst outward.
When it faded—
A knight stood in the duty room.
Half a head taller than Izuku.
"Whoa!!"
"Is this… a real Kamen Rider?! That's so cool!!!"
Izuku looked down at himself in disbelief, then reached up and touched his helmet.
"This helmet looks amazing!!!"
All Might quickly brought over a full-length mirror and placed it in front of him.
Only then did Izuku finally see his full form.
"…This is incredible!!!"
He was still buzzing with excitement—
While All Might examined him carefully.
"It looks impressive…"
"But we need to test its combat performance."
"Midoriya, let's head to the training grounds."
"…What about Kacchan?"
Izuku glanced at Katsuki Bakugo, who was still unconscious on the floor.
"…What else can we do? We're taking him with us."
"Alright."
Izuku looked toward Mobile Pegasus.
The robot nodded—
Then lifted Bakugo effortlessly in a princess carry.
Together, the three of them headed to the training field.
Training Begins
By the time they arrived, it was already five in the afternoon.
The setting sun cast long shadows across the field—
Bathing everything in a warm glow.
"First—strength testing."
All Might shifted into his Hero form and stood beside a dynamometer.
"My usual strength is around 1.32 tons."
"I can easily break this machine."
"But I don't know what to expect from you right now."
"…Honestly, neither do I."
"But I feel… really strong."
Izuku clenched his fist.
Power surged through his body.
"Give it everything you've got."
"But don't use One For All."
"Got it."
Izuku raised his right arm—
And punched.
BOOM!!!
The dynamometer was launched into the air—
Blasted clean out of the training grounds—
Breaking through two layers of sound barrier.
"…That's insane!!"
Even Izuku was shocked.
"My strength… it increased this much?!"
"…That's incredible…"
All Might muttered.
"…But what's the actual value?"
"Beep."
Mobile Pegasus suddenly rolled out a blackboard—
And began writing calculations in chalk.
"…Let me see."
All Might leaned in.
"…2.5 to 3.0 tons…"
"…That's monstrous."
"Next—speed."
Izuku sprinted across the field—
Back and forth in a blur.
"100 meters in 5.8 seconds."
"That's… very good."
"Jumping ability—35 meters."
"Far beyond your previous level."
Full Evaluation
After an hour—
They completed all performance tests.
"The last category—endurance."
"How do you feel?"
"…Honestly?"
"I'm just a little hungry."
Right as Izuku said that—
His transformation ended.
The armor vanished.
The belt and phone disappeared.
"…Huh?"
Izuku frantically searched his body—
Then lifted his shirt.
"…What?!"
The belt—
Was now imprinted onto his waist.
The phone as well.
"…What is this?"
"Beep—beep."
Mobile Pegasus wrote on the blackboard again:
For user convenience, the belt and phone are stored as imprints on the user's body. To activate, simply call their names mentally.
"…That's… convenient?"
Izuku scratched his head, still dazed.
That Night
Even after returning home—
Izuku couldn't stop thinking about it.
After finishing his homework—
He sat quietly, considering the belt.
In the end—
He made a decision.
I won't use it… unless absolutely necessary.
He sent that message to All Might—
Then opened the class group chat.
Group Chat
Minoru Mineta:Man, karaoke was amazing! So many cute girls, hehehe!
Eijiro Kirishima:Mineta, we're at Yaoyorozu's house now! It's huge! This is awesome!
Ochaco Uraraka:I wonder how Izuku is doing…
Katsuki Bakugo:…He's fine.
Denki Kaminari:How do YOU know? Did you secretly go visit him? Wow, didn't expect that from you.
Kyoka Jiro:Kaminari, you're getting way too bold lately. Give me my manga back already!
Denki Kaminari:I'm NOT Pikachu!! Give me my game back first!!
Then—
A new message appeared.
Katsuki Bakugo:…Deku. Private chat. Now.
Izuku froze for a moment.
Then—
He tapped Bakugo's name.
Private Chat
Izuku Midoriya:Kacchan, what do you need?
Katsuki Bakugo:Deku. Tell me the truth.How much are you hiding from me?Say it. NOW!!
Izuku went silent.
He put down his phone—
And went to take a shower.
On the other side—
Bakugo was pacing.
"…That idiot…"
He clenched his fists—
Sparks flickering from his palms.
"I should go over there right now and make him talk…"
Ten minutes later—
Izuku returned, drying his hair.
His phone was still buzzing nonstop.
He hesitated.
Then glanced at his pillow.
Under it—
His diary.
He nodded slightly—
Then picked up his phone.
Katsuki Bakugo:Answer me!!
Katsuki Bakugo:You wanna die or something?! Reply NOW!!
Katsuki Bakugo:DEKU!! If you don't respond, I'll kill you tomorrow!!
Izuku typed slowly.
Tears formed at the corners of his eyes—
But he wiped them away.
Izuku Midoriya:Sorry, Kacchan.We're not that close anymore…There are things I can't tell you.
Bakugo's Reaction
"…You… trash…!"
Bakugo exploded.
He smashed everything in his room—
Furniture overturned, objects scattered.
Minutes later—
He collapsed onto the floor.
Staring at the message.
"…You were just the weak one behind me…"
"…So why…?"
"…Why are you hiding so much from me…?!"
Izuku's Resolve
Izuku put his phone down—
Ignoring the notifications.
He packed his schoolbag—
Then opened his diary.
March 12
Today I encountered Villains again.
Shigaraki Tomura… he's far stronger than me.
I need to grow stronger.
Faster.
So I can defeat him.
After writing—
Izuku flipped to the very first page.
The childish handwriting stared back at him.
He nodded.
Closed the diary.
Placed it beneath his pillow.
Then lay down—
And fell asleep.