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#i researched ciphers for this i'm pretty proud of myself
somebluemelodies · 3 months
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@atthebell's SPIDERBIT WEEK DAY SIX: it couple | enigma revisiting the coffee shop au for this one, which you can read here! consider this a couple months or so post first date :> featuring: qroier being hopelessly in love and qcellbit being a total fucking nerd (/affectionate. and also hopelessly in love) this is a little lengthy like the last one my apologies-
"Roier, I can hear you thinking from here, man."
Roier abruptly stands from his spot leaning against the counter. "Perdón."
"Keep thinking that hard and you're going to destroy your last functioning brain cell." Mariana eyes his best friend. "Are you still trying to ask that guy out?"
"Yes," he answers, exasperated. "I don't know what the fuck to do."
"Just fucking ask him, man! It's not hard."
"I don't want to just ask, man! I want to do something cool for him, you know? He deserves it." Roier eyes Mariana right back. "Besides, I don't think you're allowed to offer relationship advice. You and Slime just started making out every day and eventually slapped a label on it."
Mariana looks smug and punchable. "And we're engaged now."
Roier only flips him off, leaning back against the counter and returning to his moping pondering. The other barista huffs after a few seconds, finally attempting to make himself useful. "Well, what does he like?"
"He's an investigator," is how Roier answers, "he—"
It's like a flip is switched in his brain, and he shoots back upright. "That's it! I know!" And before Mariana can question it, he's rushing out back to grab his phone.
When he returns, he's near-silent for the next several minutes upon grabbing a pen and napkin, save for occasional mumbling to himself as he studies intently whatever is on his phone screen.
Mariana doesn't bother stepping over yet, watching as Roier eventually starts writing something down on the napkin. Only when the pen has been capped, and Roier sighs to himself, seemingly satisfied, does he finally question the other again. "Happy now?"
Roier nods, smiling. "Sí."
(And so it goes.)
...
“And someone left this on one of the tables?”
Roier nodded. “Sí. Shortly before my shift ended.”
Cellbit seems mildly skeptical, but he doesn’t question it. Besides, who would he be to pass up solving a jumbled mess of letters?
“Well, it’s not a Caesar cipher. Doesn’t make sense. But…” He leans down, reaching for his satchel and rummaging through its contents before he finds a piece of paper, placing it on the coffee table alongside the napkin.
Intrigued, Roier scoots closer from their spot on his couch, hooking his chin over Cellbit’s shoulder. It looks like a table, but it’s full of letters instead of numbers. “What is that?”
(It’s just to get a closer look.)
(Cellbit wills his cheeks to cool down.)
“It’s for a Vigenère cipher. The letters in the middle are for all the encrypted letters. The left-hand column is the alphabet for whatever the key is, and the top row is the plaintext, or the 'normal' letters, if you will. In this case, it's what we're going to solve for."
(Cellbit explaining is leagues better than reading a bunch of words on a screen.)
(He could listen to Cellbit talk all day.)
“So how exactly do you solve it?” Roier asks. He has somewhat of an idea, but it was mostly him filling out the criteria on the website to encrypt it for him.
“I want to try and figure out the key first. I’m guessing the little coffee cup in the corner here has something to do it.” Cellbit points to the little doodle in the bottom right-hand corner, thinking for a moment. “It might not work, but let’s say the key is the word café. Vigenères are polyalphabetic ciphers; it utilizes multiple Caesar ciphers inside of itself, but the increments depend on whatever the key is— sorry, not important— polyalphabetic just means that they—"
“Use multiple alphabets?”
Cellbit smiles, and warmth blooms in Roier’s chest. “Yes!”
He pulls a pen from his chest jacket pocket. “We’re going to repeat café until it matches the length of the message.” He starts writing the letters underneath the cipher, continuing to talk. “We’re only going to be using the C, A, F, and E letters on the left-hand column, none of the others. Let me just finish this…”
Roier waits patiently until Cellbit gets to the last letter. When he does, he reaches for the table he’d pulled out. “Okay! So, now, to actually decipher it, we’re going to take the first letter of the key, C, and we’re going to locate the first letter of the cryptic message, Y, in C's row.” Cellbit’s pen lands on the letter Y. “Next, we’re going to follow that up to the top row for the plaintext.” The pen travels up. “W. So, the first letter of the decrypted message is W. Does that make sense?"
The barista nods as the investigator glances over to check. "Yeah. You're very smart, gatinho, you know that?"
Cellbit chuckles. "Gracias, guapito."
With that, he starts to work on decoding the rest of the cipher. Roier can't help but marvel at the speed he's able to work at - and doing it manually at that, not just putting it through online like he did. But Cellbit solving it fast is doing nothing for his nerves, his heartbeat starting to pick up.
He lets the other work quietly, trying not to shuffle and shift too much from his place leaning against him. He can't tell if he's regretting this or not, with the way the anticipation is killing him.
(But he also knows shit like this makes Cellbit happy, so maybe it won't be the complete end of the world.)
When Cellbit gets to the last word, though, he starts to slow down, processing exactly what the message is in front of him. He becomes acutely aware of Roier's head on his shoulder, the way his dark eyes are flitting back and forth between him and the papers, and pieces start clicking into place.
But he finishes it, because he knows Roier made it. Because he's stunned someone would go to this length for him. And so, the decoded cipher stares back up at him.
(WILL YOU BE MY BOYFRIEND)
Cellbit reads it back over to himself, once, twice, heart hammering in his chest as a haziness washes over him. He feels Roier lift his head, momentarily mourning the loss of contact, but wills his voice to work. "Roier..?"
"Well?" Roier asks after a moment, and Cellbit feels brave enough to glance over at him. They lock eyes, and he looks just as nervous as Cellbit feels, if not more. "Will you?"
For a moment, Cellbit doesn't move, expression unreadable, and Roier wonders if maybe this was a mistake after all. But then he sits upright, and orients to face him. "Cellbo—?"
He's effectively cut off by lips pressing against his, one of Cellbit's hands cupping his face as the other rests against the back of his neck.
Roier's eyes close immediately, melting into it as one arm wraps around the investigator's neck. His other hand goes up, threading through Cellbit's hair and subconsciously deepening the kiss.
(It feels warm, it feels right.)
They only pull apart when their lungs demand oxygen, foreheads resting together.
"Does that answer your question, guapito?" Cellbit breathes out.
Roier grins. "I think I need a little more clarification, gatinho."
Cellbit can't help but laugh. "Let me try again, then."
"By all means."
And somehow, the second kiss is almost better than the first.
(Enigma solved.)
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