You and Yang broke off the rest of the stone that was covering Senku as he got up. 

Senku: Alright, that feels much better. Guess humanity hasn't lost touch at all. 

(Y/N): What kind of plane of intelligence are you on? 

Senku: I could rival guys like Albert Einstein and Stephen Hawking if I wanted. 

Sci-Twi: You've got a lot of spirit to back that up. Also, I'm the one who came up with a cure to the petrification. See? 

Senku saw the nitric acid. 

Senku: Nitric Acid? It would take a lot more than just that. If you're going to use science, you need logic. 

Sci-Twi: Simple, (Y/N)'s blood also has healing properties, so I used a drop to get you out of it. 

Senku: Huh? 

He seemed confused by it. 

Ruby: Oh well, it's- 

Senku: No, say it in a way that makes sense, because blood with healing properties doesn't have any logic.

Weiss: Is everything science with you? 

Senku: I know a lot about science, used to watch a lot of Doraemon when I was a kid. 

Yang: Oh, great, he's a nerd. Also, you guys might want to turn. 

(Y/N): Why is- OH GOOD GRIEF! HE'S NAKED! 

Senku: Clothes don't last forever. Seriously, for finding a way to unpetrify me, you should know better. 

Much later... 

Weiss and Blake did their best to construct a cover for Senku's ... holy rod. 

Senku: Okay, so to explain it's been over 3700 years since the world was petrified. Almost like a stone age reset. We'll call this year 0. 

He marked down 5738 AD. 

(Y/N): That much?! 

Senku: And since we're the only humans who haven't been petrified, we just need to start all over from scratch. We'll need shelter, food, a source of water, and also-

He got out wood. 

Senku: FIRE! HAHAHAHAHAHAHAHA! 

Sci-Twi: Your ego is out of order, but your plan is correct. We'll need a fire. 

Senku: Okay, you, (Y/N) right?

(Y/N): Yeah? 

Senku: You seem strong like a friend of mine. 

(Y/N): Oh really? 

Senku: That Big Oaf could make a fire with brute strength. 

(Y/N): I see. 

You started rubbing two sticks together. 

(Y/N): Since he wants to be on a more thinking level, I'll do it the old-fashioned way! 

Sci-Twi: Personally, I was going to suggest you use different kinds of stones for it. 

Senku: No, my dear Sci-Twi, if we're going to use stone at this point, we'll need it for weapons! 

He began breaking apart different stones. 

Blake: That's ... amazing ... he's already coming up with an other plan this quickly? 

Weiss: Sci-Twi, how do you feel? 

Sci-Twi: I feel amazed! Senku, you're a genius! 

Senku: That's 10 billion percent accurate. And in that short time- 

He made a stone axe. 

Senku: I've already got a weapon! 

(Y/N): And the fire's done! 

Yang: Okay, now- 

Yang's stomach growled. 

Yang: LET'S EAT SOME FOOD! 

Much later... 

Yang had caught a deer. 

Yang: Who wants deer meat? 

(Y/N): Oh, that's g- 

Senku: Yang, hang on a second. 

Yang: What? 

Senku: I'll need to borrow that dear's skin. 

Yang: For what? 

Sci-Twi: He's going to make clothes, what do you expect? 

Yang: Oh ... right. 

Much later... 

You had cooked up some meat for everyone to eat, and- 

Senku: Guess I should reintroduce myself. The Adam of the Stone World, Senku Ishigami! 

Ruby: WOW! That looks so- 

Sci-Twi: YOU MADE THAT IN SUCH A SHORT TIME?! And the "E=MC^2" is such a nice touch! 

Senku: Food is not a problem anymore; now we need shelter! Guess like with a total of 7 people, we should get enough supplies. 

Yang: How long is that going to take? 

Senku: Probably a couple of days. If you hurry, it could be less than a week. 

A couple of days later... 

With everyone's combined effort, a treehouse was constructed. 

Senku: HEHEHEHE! Every little boy's dream. 

Sci-Twi: You're not that physically active are you? 

Senku: No, I usually had my friend Taiju help out in experiments. But he's not here right now. Unless- 

Senku began to brainstorm. Then he ran to the place where you six originally found him. 

(Y/N): Senku, what are you doing? 

Senku: This is close to where I broke free, so that Big Oaf has got to have drifted from the same original location as I did. 

Ruby: Drifted? 

Weiss: Obviously, strong currents can carry people way in if they're stone. 

Yang: Need help, I GOT THIS! 

Yang started digging with her bare hands. 

Senku: WATCH IT! YOU'RE GOING TO GET DIRT IN MY- 

Senku's shovel hit a stone. 

He looked like he was going to tear up. 

Yang: Hey, is this him? 

(Y/N): This is Taiju? 

Senku: HAHAHAHAHAHAHAHA! Yep! It's been 3700 years. 

Ruby: Alright! We found someone else! 

Senku: Looks like he can be brought back the same way you guys brought me back. 

(Y/N): Wait, I've been wondering. How did this all happen in the first place? Everyone got petrified 3700 years ago! 

Ruby: OH! Maybe it was aliens! 

(Y/N): Huh? 

Ruby: You know! 

Ruby pictured up a scenario where aliens appeared! 

Alien: Earthlings are annoying. 

Alien 2: Yeah, let's turn them all to stone! FIRE THE PETRI-BEAM! 

A beam hit the entire earth. 

Weiss: Ruby, that's ... I- 

(Y/N): I mean it could happen. 

Sci-Twi: Be realistic. For all we know, it could be a government experiment. 

General: We've finally completed our petrification doom device! HAHAHAHAHAHAHAHA! 

A giant generator caused the entire world to be petrified! 

Weiss: Well, I mean that could happen. 

Blake: I would say 50 percent it would. 

Senku: Not farfetched. Both Sci-Twi and Ruby make good points. 

Ruby: You're not freaked out about aliens? 

Senku: I didn't say they could exist. But- 

Senku pictured up a scenario. 

Virus: HAHAHAHAHAHA! We're the petricoccus virus! Only humans and swallows are vulnerable to us! 

Weiss: You're saying that it was a virus? 

Senku: Maybe. But, one thing we can be sure of is that only the humans and sparrows were targeted. 

(Y/N): True, I saw a bunch of them all petrified. Now- 

You went to the droppings of nitric acid. 

(Y/N): This is one of the things, along with my blood that caused you to break out! 

Senku: Then- 

You acquired the same ingredients and- 

Senku: Okay you Big Oaf! Wake up! 

Senku dumped it on Taiju, but it didn't work. 

Senku: 

Sci-Twi: IT DIDN'T WORK?! But ... that ... I- 

Ruby: Maybe we missed something? 

(Y/N): No, only the nitric acid and some of my blood brought Senku back. 

Weiss: Yes, that was everything, so w- SENKU, WHAT ARE YOU DOING?! 

Senku was thinking. 

Senku: There has to be a reason why it only worked on me. Come on ... think. 

Sci-Twi: WAIT! OF COURSE! 

Senku: I was thinking! 

Team RWBY: HUH? 

(Y/N): What do- AHA! Even when Senku was petrified, his consciousness didn't completely slip away! He was counting all the time he was petrified! Unlike everyone else, he was still using his brain. 

Sci-Twi: Basically, all that energy in his brain must have consumed something in the stone. 

Yang: You lost me. 

Sci-Twi: Lok, the brain uses about 400 calories per day, if you do the conversion for 3700 years, and you would need over 2 trillion joules. Energy and mass relate to E=MC^2, like Einstein said himself. No matter how hard yoy try, energy can't be created from nothing. 

Senku: It's basically amounts to- 

Senku got everything prepared. 

Senku: Using science! We got to run tests every day and work through it. 

And so... 

Sci-Twi and Senku were working together as you and Team RWBY handled getting food and everything. 

Sci-Twi: (panting) I don't get it! If only we had alcohol, we could make a corrosive agent like Nitor. 

Senku: Giving up already? Listen here, the more time we waste, that Big Oaf's blockhead is slowing down his revival. But, if I know Taiju, we both suck at giving up. 

Sci-Twi: So what do we- 

They both got a plan and dragged Taiju over to where the Nitric Acid was dripping. 

Sci-Twi: I hope this stays consistent. 

Senku: It has to. Come on Taiju, wake up! 

Soon... 

Taiju finally broke free! 

Taiju: AAAAAAAAAAAAAAAAGH! I'M FREE! I- Huh? 

He looked outside the cave to see 

Taiju: These are all people! So, this is how things are now! 

He noticed all the people who were broken by the petrification and tried to build them back up the best that he could. 

Taiju: I'm sorry, I don't know who you are or, where you're from, but this is all I can do. 

He found a nearby river, and drank from it. Then he gave himself underwear as well out of leaves. 

Taiju: Okay, maybe if I follow the river, I could find her. 

He kept going and saw a petrified muscular man. 

Taiju: Wait, that's Tsukasa Shishio, the strongest primate high schooler. Even a dude like him got petrified. 

He kept walking and walking until- 

Taiju: Y-Yuzuriha! You ... survived. Even after all these millennia. 

He saw Yuzuriha bound to a tree. 

Taiju: HA! Good job hanging in there tree! You kept Yuzuriha from floating downstream and breaking up! I'm sorry I couldn't do anything myself for you, but thank you, because you survived, I was able to make it. Now I can finally say it! What I've been waiting to say on that day long ago ... I- 

He teared up. 

Taiju: I've loved you for hundreds and thousands of years! AND I PROMISE! I'LL SAVE YOU! I'm not sure how, but I'll think of something. 

Then he noticed a message carved into the tree. It said, "Head down the river, you Big Oaf." 

Soon enough... 

Taiju ran down the river and saw- 

Taiju: SENKU! 

Senku: Looks like it actually worked. Welcome back you Big O- 

Taiju: SEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEENKUUUUUUUUUUUUUUUUUUUUUUUUUUUUU! 

Taiju ran to give his best friend a hug, but Senku kicked him! 

Senku: DON'T HUG ME WHILE YOU'RE NAKED! 

(Y/N): Did he actually wake up? 

Ruby: Hi Taiju! 

Sci-Twi: We're the reason why Senku is here. 

A big explanation later... 

Taiju: THANK YOU! ALL OF YOU! Senku is alive because of what you did! 

Sci-Twi: It's been nearly a month since we brought Senku out of his petrification. 

Senku: To be exact, this is October 5, 5738. 

Taiju: How do you know that? 

Senku: I've been counting everything. 

(Y/N): You've got a smart friend here. He's been counting everything that's happened since he was petrified. 

Taiju: In that darkness, this whole time? 

Senku: I knew that if I could, at some point, I would emerge bare naked without food, and it would be an instant game over. Survival depended on my start in the spring. Keeping an accurate calendar was an absolute necessity. And thanks to these six, I'm out, and- 

Taiju was astonished to see the treehouse. 

Taiju: Just you six did this? 

Senku: Even a genius like me can't do everything. What I can produce on my own would keep me alive, but to restart civilization, I need more. That's why I was hoping to get you out soon, Taiju. 

(Y/N): Senku told us everything about you. Like hell, we're going to leave a guy who couldn't confess to the girl he loves petrified! 

Ruby: You're a total nice guy. And- 

Sci-Twi: To put it easily for you, you don't know when to give up. 

Taiju: D-Darn right! 

Soon at night... 

Taiju finally got clothes from more deer skin. 

Senku: Now then, we're going to take back the wolrd, all of us. We'll add the power of science to figure out what also caused the petrification and our survival and then save Yuzuriha next! Get excited! 

Team (Y/N): YEAH!