JJK Men Babysitting Their Grandchild When the Baby's Powers Suddenly Activate Like Jack-Jack (From The Incredibles)
Gojo Satoru
"This is gonna be easy."
His grandchild is happily stacking blocks.
Gojo is halfway through making funny faces...
...when the blocks suddenly begin floating around the room.
"...Huh?"
The baby giggles.
Thenâ
Poof.
The baby disappears.
Gojo freezes.
"..."
"...Where'd my grandbaby go?"
A tiny laugh comes from the ceiling.
Gojo slowly looks up.
The baby is somehow crawling upside down across the ceiling.
"..."
"...You know what?"
"You definitely inherited this side of the family."
Twenty minutes later he's chasing an invisible, teleporting toddler around the house while laughing the whole time.
Suguru Geto
He's reading while the baby naps peacefully.
Then...
Every tiny household curse within a mile quietly wanders into the living room...
...and begins sitting around the crib like curious puppies.
Geto blinks.
"...Interesting."
The baby reaches out.
One of the curses gently boops their tiny hand.
"...Already making friends."
He calmly shoos the curses back outside before the parents return.
"No one needs to know."
Nanami Kento
He's making tea.
"...Strange."
It's suddenly...
...very hot.
He turns around.
The baby is glowing.
Not metaphorically.
Actually glowing.
"..."
Then tiny sparks begin popping around the room.
Nanami calmly sets his tea down.
"Alright."
He picks up the baby.
"I believe we've reached today's excitement quota."
He spends the next hour baby-proofing things that should never have needed baby-proofing.
Sukuna
The baby sneezes.
The coffee table...
...splits perfectly in half.
Silence.
Sukuna slowly looks at the table.
Then at the baby.
The baby claps proudly.
"..."
A grin slowly spreads across his face.
"...Outstanding."
The baby sneezes again.
Another chair explodes.
Sukuna laughs so hard the neighbors hear him.
Toji Fushiguro
He's watching TV.
The baby starts crawling.
"...Hey."
Then crawls...
Straight up the wall.
"..."
Toji doesn't even look surprised anymore.
"...Your mom's never gonna believe this."
He casually stands underneath with his arms out.
"Alright, Spider-Baby."
"Come on down."
Yuji Itadori
Everything is fine.
Until the baby accidentally punches the floor.
BOOM!
There's a tiny crater.
Yuji stares.
The baby laughs.
"..."
"...YOU'RE SO STRONG!!"
Instead of panicking...
He's cheering.
Then realizes he should probably move all the furniture.
Megumi Fushiguro
The baby giggles.
Suddenly...
Tiny shadow puppies.
Everywhere.
Dozens.
They wag their tails.
The baby squeals happily.
Megumi sighs.
"...That's actually adorable."
Then one puppy steals his sock.
"...Give that back."
Choso
The baby cries.
Tiny ribbons of cursed energy swirl around the room in response, knocking cushions off the couch.
Choso immediately scoops them up.
"It's okay."
Grandpa mode activated.
The energy settles almost instantly.
"...Oh."
"You just wanted a hug."
He absolutely melts.
Yuta Okkotsu
He's helping the baby color.
Suddenlyâ
Every crayon begins drawing by itself.
Animals.
Stars.
Flowers.
The baby claps excitedly.
Yuta blinks.
"...That's..."
"...Actually really impressive."
When the parents come home...
The entire wall has become a beautiful mural.
"...I can explain."
He cannot.
Toge Inumaki
The baby babbles.
A tiny burst of cursed speech escapes.
Every stuffed animal in the room suddenly...
"...Jumps."
The teddy bears.
The rabbits.
Everything.
Tiny plush parade.
Toge blinks.
"...Salmon..."
The baby laughs so hard they hiccup.
He quietly records a short video because no one will believe this otherwise.
Aoi Todo
"My grandchild!"
He's teaching them how to clap.
The baby claps once.
BOOM.
They accidentally swap places with Grandpa.
Now Todo is sitting in the playpen...
...and the baby is in the recliner.
Silence.
The baby giggles.
Todo stares for exactly two seconds before bursting into booming laughter.
"HAHAHAHA!"
"EXCELLENT!"
"You've already awakened your technique!"
He spends the rest of the afternoon turning it into a game.
Every few secondsâ
Swap.
Baby.
Grandpa.
Toy box.
Couch.
The living room becomes absolute chaos.
When the parents return...
Todo is upside down in the playpen.
The baby is happily eating crackers in his chair.
Todo proudly announces,
"I believe today's training was a tremendous success."
The parents exchange one look.
"...What happened?"
Todo smiles.
"...The future happened."













