As Team RWBY's group got to constructing the donuts to build the computer from scratch, Sai was also working with the Adder Unit! 

(Y/N): Sweet! 

Chrome: BAAAAAAD! 

Ryusui: HA HA! Fantastic! Now let's pump out Dragon Quest! 

(Y/N): Easy there, Ryusui, this is just a level one computer. 

Sci-Twi: Exactly, so how much can this add up to Sai? 

Sai: 255. 

Sci-Twi: Nice! 

Sai: This circuit diagram shows how to link it all together. 

Sai drew an entire circuit diagram. 

Gen: Alright, except I'm completely lost. 

Kaseki: That's one complex schematic. How are we going to get it to the folks in Corn City? 

Chelsea: I'd be plenty easy if we could send over the actual pic. 

(Y/N): Hang on. 

You made a call to Xeno. 

(Y/N): Paging Dr. Xeno. 

Xeno: Yes, I'm here. I'm aware of the situation. I also have an elegant solution. Photos and schematics must simply be sent online. 

Gen: Please, not the human-powered fax! For a photograph, that's unthinkable! 

Xeno: No, we'll use a proper fax this time. As we seek to link the world, the need for such things is an unavoidable path. That's why I sent instructions to Team RWBY's group in North America. 

(Y/N): Good thinking, Xeno! 

Xeno: Now then, Senku, do you also need a delightful crash course on how to construct a fax machine? 

Senku: Heh, good one. Just tell us what set up you're using and we'll take it from there. 

Later... 

Chelsea returned with some minerals. 

Chelsea: Here's some sphalerite. 

Sci-Twi: Ah, this is what you used for the glowing kites! 

Senku: All we do is boil it down, coat some paper with it, and we've got printing paper! 

(Y/N): Nice!

Sci-Twi: The markings are burned in using electricity. As for getting the machine to read it ... well ... that's tricky. 

Senku: It shines a light, "sees" if a spot is black or white, and converts the data into some funky electric signals. Those signals turn into radio waves that fly across the world, and reversing the process reproduces our burns and prints the image! 

Ryusui: HA HA! This means that Corn City will do the heavy lifting for the computer crafting! All we do is keep globetrotting and finding more cities! 

(Y/N): Looks like it! 

Kohaku: So, it's time to ship out? Great! We should move without a moment's delay! 

Sai: On that note, our brief time together ends. I'll remain here in India to toil away on circuit diagrams. I'll fax them to you once I can. 

Ryusui: What?! No way! You're coming with us, Sai! 

Chelsea: Wait ... which is it? 

Sai: NO NO NO NO NO! I'm not going! Certainly ot with you, Ryusui! 

Much later... 

As you all were reviving people to populate Math City, Sai was working hard. 

Sai: Every damn time! Ryusui's always been like this! He desires everything and to me, it's always, "HEY SAI, Do this!" That's why I came to India, to get away from it all! 

Something started coming from the Fax Machine! 

Chrome: HEY! Something's coming from Corn City! 

Sci-Twi: Really?! What is it? 

A group photo came out! 

Picture Ruby in the front, doing a peace sign and wink, Weiss next to Ruby, with a warm smile, Blake blushing and smiling, and Yang with a goofy grin and putting an arm around Blake... 

(Y/N): Aww! Now that looks so sweet! 

Sci-Twi: It seems that they're getting along with the Americans now. 

Sai: ... Yeah ... that looks ... great. 

That night... 

Sci-Twi and Gen moved right to Sai's house. 

Sci-Twi: I'm telling you, the way he acted was completely saddened. 

Gen: Yes, something about that photo triggered a reaction in him. But we must take an indirect appraoch and- 

Chelsea burst into the house! 

Chelsea: HEY! What's the deal with you and Group Pics? I think you and your brother should get along! 

Sai: 

https://youtu.be/Fi8WgXTYCVk

Play from 0:03-0:08... 

Sci-Twi: CHELSEA! 

Chelsea: Oops! 

After calming Sai down... 

Sai: I'm sorry. It reminded me of the group photos of our family. Ryusui and I were always left out. You see, we weren't born to the matriarch of the Nanami Family. 

Sci-Twi: Uh ... 

Chelsea: Your Mom is not your Mom?! 

Sai: Father and the whole clan forced me to focus on math. Molding me into a useful and loyal soldier. Ryusui, on the other hand, nobody could control him. That's just the way he is. 

Flashback... 

Ryusui: HEY SAI! I DESIRE YOUR POWER! 

Sai: NO! GO AWAY! 

Ryusui: Oh come on! Let's calculate the car's air resistance! 

Sai: NO! 

Ryusui: Then help me analyze the game's RNG Tables! 

Sai: NOO! I'M NOT A HUMAN CALCULATOR! 

End of Flashback... 

Sci-Twi and Chelsea were shocked. 

Chelsea: (tearing up) How sad. 

Sci-Twi: Sai, you underestimate your brother. 

Sai: WHAT?! Ryu's completely selfish! 

Sci-Twi: He's greedy, not selfish! 

Gen: All Ryusui wanted was to spend time with you. You're his only brother. 

Sai: What? 

Sci-Twi: When he says he desires everything, he means anything. Even a brother like you. I mean, it's not like he forced you to do these things. 

Sai thought about all the times that Ryusui started to scream at him that they should build a race course or build a sailing ship together. 

Much later... 

Ryusui: HEY SAI! We've got some time to kill before we leave, so let's play some chess together! 

Sai: HOW MANY TIMES DO I- Actually, yes, let's play some Chess. 

Ryusui was taken aback by this. But went through with it, with his typical smile! 

The game went on with Sai showing much skill against his equally intellectual brother. 

Ryusui: HA! I expect nothing but the best from you, Sai! When it comes to logical games like Chess, you're a master! 

Sai: Yeah ... I guess. 

Ryusui pat him on the shoulder. 

Ryusui: I'll be bored, so I desire a worthy opponent to play against on the High Seas. 

And so... 

Sai came on board the Perseus. 

(Y/N): Welcome on board, Sai! 

Sai got to work with helping Sci-Twi and Senku with passing off the manual labor to Corn City. 

Suika: Hey, they're in high spirits. I wonder what they're planning on doing. 

Taiju: (on the phone) Are you guys making smartphones or something?! 

Weiss: I doubt that's what the plan is. 

Sci-Twi: Just be patient, Taiju, that could come soon. Right now, winding all the wire for the computer is going to take loads of patience and hard work. 

Blake: Actually, we've got experts. 

Yuzuriha, Joel, and Luna were hard at work! 

Hyoga: Yes, it seems that these three were made for this job. 

Magma: ARGH! I STILL DON'T GET HOW THIS WILL HELP! 

Yang: Someone's cranky today. 

Ukyo: Launching from the earth to the moon is like trying for a death-defying hole-in-one shot in golf. 

Ruby: Yeah, we need the computer to get the right trajectory to make the jump. 

Yo: LIKE THAT WILL HELP! 

Minami: Uh ... Gen just sent this over. 

Kinro: "A Math contest. Use of tools is permitted?" 

Yuzuriha: Oh, I think I get what this means. 

Ruby: Gen the Mentalist strikes again. 

Yo: Please, you think we're that gullible? Tournaments are great and all, but there's no way that- 

Minami: Also, the winning team gets a hundred million Dragos. 

Magma and Yo were at it already! 

Weiss: Dumbasses. 

The Americans also got to freeing more people as the corn was growing very well over at Corn City! 

Ruby: We got Corn! 

(Y/N): Looks like everything is going good over there. 

Sai: Yes, now we make some memory! 

Chrome: Huh? 

Sai: Basically, a way to record and store the data. Without memory, a machine has no way to remember numbers, which leaves us unable to perform complex calculations. 

Sci-Twi: Yes, you've got circuitry that thinks and circuitry that remembers. If you put them together, we have a high-performing computer! 

Chrome: A machine that can remember numbers? 

Suika: How does that work? 

Sai: Not sure, semiconductors would help, but- 

Senku: We'll save data using magnets! 

(Y/N): And Senku strikes with a crazy idea. 

Sci-Twi: That would help a lot! Let's send the instructions! 

They started sending a fax of instructions to Corn City! 

Ukyo: Heads up guys, the memory-crafting instructions have been sent by Senku. 

Ruby: Hmm ... I see! 

They took the iron oxides that Brody created and zapped it with a strong current, then used the magnet for the south side. 

And then did the same thing for the other way. 

Ukyo: Since the saved number is either a one or a zero, we can do that by swapping polarities! North or south. So, one of these little magnets can store a one or zero in memory. 

Magma: HA! So what? Even the biggest dummy around could remember a one or a zero! 

Ukyo: Yes, but combining a whole bunch is when the real magic happens. That should be nothing new to you since you've seen the Kingdom of Science in action. 

Yuzuriha: DONE! 

Yuzuriha: Let's say you want to save to this magnet. It's in column three and row two, so you just send the electric current through those wires. 

(Y/N): (over the phone) Yeah, that's how it's done! 

Chrome: I GET IT NOW! Only the spot where the currents cross gets a baaaad zap! That means only the magnet gets recorded as either north or south! 

Senku: Ding ding! Ten billion points! 

Sci-Twi: Stupidly primitive, but solid and reliable. Space shutters and F-15 fighters once used this method, so small armies of talented tailors had to labor hard day and night to weave those little nets. 

Kinro: That means our mission is to sew together a vast quantity of these little rings? 

Max: How vast a quantity are we talking? 

Carlos: I think it was 200,000. 

Luna: I mean that would be no big deal for me. 

Yuzuriha: Well, that's for the donuts. For the weaving, it's thirty million! 

Luna: WHAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAT?! 

Ruby: NO TIME TO WASTE! LET'S GO! 

Eventually... 

Minami: We're ... finally ... done. 

Yuziriha: Sort of. These horizontal and vertical grids are for saving data, but to load it we need more wire. 

Luna: Oh no. 

Ukyo: As for a visual way to show us these numbers, we need the display. (reading the instructions) We're going with Nixie tubes. We bend the wire into the shapes of numerals and fill the tube with gas so that an electric current makes the right wire glow. 

Joel: That's my domain. Compared to watch making, this is like taking candy from a baby. 

And so... 

Chelsea: Hey! India's got all the fuel we need! 

(Y/N): Great! We can ship off! 

Gen: WAIT! This Indian Ocean crossing is perfect for the New World Mathlympics! 

Kohaku: Oh no. What is it this time? 

Gen: Let's meet our mathletes, Chrome, Senku, and Sai! 

Gen: And competing remotely all the way from Corn City is Magma! 

(Y/N): HUH?! 

Ginro: (from America on the phone) MAGMA?! WHY HIM?! HE'S AN IDIOT! 

Xeno: Calm down Ginro, you'll see. 

Gen: As for our question, what is 995204152 divided by 10583 times 293719 divided by 2239 times 67071? 

Sci-Twi: Oh boy. 

Sai was writing it down as Senku was thinking and Chrome was struggling to even get past the first division. 

Magma: 827401136058. 

Chrome: HUH?! 

Kohaku: WHAT?! 

Sci-Twi and Senku: Yes./Yup. 

Sai: That's correct! 

(Y/N): WE MADE A FREAKING CALCULATOR! HA! That idiot actually got it right! 

Senku: Something made from scratch by people can end up transcending the human mind. That's a reason to get excited. 

Taiju: So there's 30 million magnets in there?! Dang! If tat's what a few thousand gets us, just imagine the finished project! We talking smartphone level?! 

Nikki: We still have some nasty labor ahead of us. 

Ukyo: Also, that prize money from the contest will basically be our wages for this job. 

Yo: WHOA! I almost forget! We get a hundred million Dragos! But Ryusui can't give us the dough! 

Francois: (on the phone) That's alright, we will pay you via direct deposit. 

Minami: That's big talk, but how could we run a bank at this point? We need a way to record and calculate people's finances. 

Weiss: Uh, that's what the calculator is for. 

And so on the Perseus... 

(Y/N): Okay! Xeno and his team are working on the Engine, and Team RWBY's crew is making the computer! That leaves us with the mission of completing the rocket! So let's do this! 

Kohaku: So, where's our next stop then? 

Ryusui: Australia! 

Senku: Our main ingredient will be aluminum since it's light. 

Sci-Twi: And Australia, primarily the northern tip, has the most abundant source of Bauxite, the ore that will give us aluminum!