(January 9, 2019, in a secluded bunker)

After Aiden ran away from Linda and moved to Japan under with a fake name, of which he called himself ''RICK SWORDFIRE'', he was finishing up something that he's been working on for about 3 years and now, those long years finally paid off as he finished working on it after typing in the last parts of his project's code and wiped off the sweat from his face

Aiden: (chuckles) finally, it's done.

We then turn the screen from Aiden's face to....

A FRIGGEN CRYO-POD!!!!

Aiden then looked around the bunker and sees the supplies he'll need after he'll wake up in the unknown future

(these things)

Aiden: Well, I got everything I need, now it's time to freeze myself.

He walks into the cryo-pod, pressed a button from the inside as the pod shut and started to freeze him

(5 months later)

After Aiden froze himself, a green light engulfed the entire earth, turning everyone into stone statues, but soon one man will wake up a few thousand years later and will use science to rebuild humanity from scratch

(3,700 something years later)

After Tsukasa was defeated and his dangerous empire of might warriors were imprisoned, because of them being too dangerous to be let loose, Senku & the kingdom of science decided to find the source of the petrification beam and in order to do that, they need to build a ship and will need a captain of said ship, of which they already found

After Ryusui bought ownership of the recently re-discovered Sagara Oil Fields, we see Suika looking around for her pet Boar, Sagara after it caught a scent

Suika: SAGARA!!! Where'd you run off too!!??

Then after a few minutes of searching, Suika found Sagara standing in front of a metal plate

Suika: Sagara, what did you fi-

Then her eyes widened under her mask as she sees that the metal plate Sagara found was actually.... a bunker entrance hatch, which looks extremely rusted and covered in grass & algae

Suika: (gasps in shock) IT'S A DOOR!!!!

(Later)

After Suika & Sagara returned to the kingdom of science, Suika told everyone about the bunker hatch they discovered, shocking Senku & the others from his time

Yuzuriha: (gasps softly) a bunker?

Gen: Eriously-say!! How is that even possible!! A bunker in the stone world should be impossible to find because there's no way that any of them could last for 3,700 something years.

Senku smirked in being impressed at Suika's discovery

Senku: (chuckles) but except suika here DID find one. Now, where did you find this hatch exactly?

(AT THE BUNKER'S LOCATION)

We see Senku, Gen, Kohaku, Taiju, Magma, even Kaseki arrived at the Bunker and look down at the hatch. Magma was needed because he wanted to see if this bunker resident was tough and strong like him or Taiji, or any of the buff Prisoners of the Kingdom of Science. Kaseki joined in because he wanted to see what's inside of the bunker and wanted to see if it had any pre-petrification day blueprints from the past

Senku smirked and looked at Taiju

Senku: Taiju, go on ahead.

Taiju: (SCREAMS IN JOY)!!!!

Then he grabbed the hatch and with Taiju's brute strength, he successfully opened it as he laughed triumphantly while Magma and Kohaku smirked at Taijus for successfully opening the entrance to the bunker as Kohaku approached said entrance

Kohaku: I'll go in and see that it's clear.

Then he jumped in

(IN THE BUNKER)

After Kohaku jumped in the bunker and landed on the ground, she looked around and sees that's very dark, or at least it was until the lights automatically turned on, startling Kohaku and went into a defensive stance, but widened her eyes at what she is seeing now

Kohaku: woah...

She stopped being in her defensive stance and looked around the place, seeing that it's barely worn out, rusted or whatever, which surprised her to be honest

Kohaku: who even built this place?

Then as she kept on walking down the hallway, she eventually found the room where she got her answer.... she found the resident of the bunker and the pod he's in

Kohaku: (gasps softly)

She ran towards the pod, wiped the glass and sees Aiden sleeping in it, which made her blush at seeing how handsome he is, unlike the other men in her village.... especially Ginro, the resident sleez-bag of the Kingdom of Science

Kohaku: (narrows eyes) who are you?