For All Have Sinned: Secret Agent x BTS AU

Part: 29/?

Pairing: Min Yoongi x reader

Genre: Secret Agent, mystery, murder, high school, Min Yoonji, cross-dressing, romance, comedy, smut

Word count: 2.1

Summary: You're once again assigned and shipped off with your partner to uncover the truth about the death of three high school females at a boarding school. You're determined to stop the serial killer. However, it becomes a bit difficult when you have to prevent your boyfriend from being so damn horny all of the time. Your boyfriend, who is forced to dress like a high school female student at age 24, you must add. It may seem amusing at first, but the case becomes even more difficult as students continue to get killed right beneath your nose.

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"Yoongi."

The man beside you winces, a pout on his face as he refused to make eye contact with Namjoon who's on the screen of the laptop in front of you. You just innocently looked at the glassed man, knowing you had no part in the disappointment your leader felt as he addressed your partner.

"I didn't do it."

You don't bother hiding your eye roll, scoffing loudly at Yoongi's pathetic excuse. The raven-haired man glared at you, sending you a stink eye, non-verbally telling you to shut up. You pretend you don't see it, playing with your nails, examining them closely. You're tempted to call out his bullshit but you don't, already knowing your leader was aware that Yoongi was lying as well.

However, your eyes shift back to the computer as you hear a sigh. Namjoon is pinching the bridge of his nose, looking stressed with his eyes closed. Eventually, your leader reopens his eyes, a frown on his face as he looked at you and Yoongi.

"Fine whatever, although I call bullshit. It's not like those cameras are there for your protection. Right? They don't protect you at all. I don't care," Namjoon spit sarcastically. But after a moment he sighs, the anger seeming to deflate, only leaving a tired looking man, "just be careful, you understand me? The safety of the two of you is my first priority, okay?" Namjoon grumbles as he taps his fingers on his desk, a look of concern filing his gentle eyes. However, his expression is quick to shift to one of seriousness, the man in the screen shifting his jaw, his lips getting stretched into a straight line. "Anyhow, there is something-"

"Namjoon! This is ridiculous!"

You see Namjoon on the screen flinch, almost toppling out of his chair as the door behind him slams open, revealing a very familiar man in a white lab coat. You're surprised the mug of coffee that sat on his desk didn't spill at his movement, you being able to see the dark liquid swish around the rims.

Jin's dark eyebrows are furrowed in an expression of frustration, his plump lips shaped into a pout. However, his face shifts to surprise, seeming to have realized he had interrupted a meeting, a look of guilt spreading across his handsome face as his mouth parts.

"Oops, sorry. Didn't know you had a meeting Joon," Jin quickly spoke, moving to grab the door that he had slammed open, "I'll come back later to rant."

Namjoon, who had barely saved himself from falling off his chair had a light scowl on his face. But he raised a hand, stopping Jin, giving his head a quick shake. "it's okay. You can stay, it's actually Y/N and Yoongi. Didn't you say you wanted to talk to them soo-"

"Y/N? Yoongi?" Jin perked up, quickly rushing forward as he peered into the camera, a bright smile spreading across his face. "Y/N! Yoongi!"

You return his look, waving your hand lazily, "hi, Jin-Oppa. It's been a while," you reply, your cheeks lifting up as a small grin spread across your face, happy to see the older man.

Jin rolls his eyes, but sends you a good-hearted smile, "it's been too long! I'm sure the both of you are deprived of seeing my handsome face," Jin brings his thumb and forefinger to his chin and jokingly makes a face that makes a giggle to escape your mouth. Yoongi doesn't look impressed, his expression not changing as he just gives the older male an exasperated look.

Namjoon coughed, making Jin turn to him in question. But seeing Namjoon's look, Jin sports a sheepish smile as he straightens his coat, turning to Yoongi and you.

"Anyhow, I'm glad I was able to catch you two while you're having your meeting with Joonie. I had some updates I wanted to give the both of you verbally and wanted some of your opinions as well," the man spoke lowly as he pulled out a chair to sit.

You nod in understanding, your back straightening as your team's forensic pathologist began to speak.

"I've received the fourth victim's, Im Nayeon's body the day she was found, and my team and I quickly did an autopsy. I've also read the report Jungkook and Taehyung wrote with your help. You assumed drowning was the cause of her death, right?" Jin spoke, the man's eyes thoughtful as he looked at you through the monitor.

You nodded, "yes, that's what it looked like seeing the location I found her in. She was floating in the pond," you comment, your eyes hardening as you recalled how you had found her with Jihoon.

Jin hummed, the man rubbing his chin. "Her autopsy said otherwise, however."

Your eyebrows shot up, your lips parting. "What?"

Jin sighed as he ran a hand roughly through his hair, combing it back. "Her lungs, while there was water inside them, the swelling wasn't large enough for me to assumed she died through drowning. The pleural fluid buildup was significant small as well. So, my guess is that while she might have been in the water for a short amount of time when she was alive, it wasn't the cause of her death. Something else killed her."

A silence falls over all four of you, you trying to process the information Jin told you. Yoongi also has a thoughtful look on his face, his lips pursed. 

"The pleural fluid you found, have you sent that to the lab already?" Yoongi questioned, crossing his arms over his chest as he sat back deeper into the chair.

Jin nodded at the question, pulling out his phone, scrolling through the device. "Already done. We compared the pleural fluids found in the girl's lung and the water they collected from the pond and the bacteria and plankton types matched. Although the pleural fluid had significantly less bacteria, which is a bit concerning as well. So I can't really say anything... She might have drowned, she may have not... "

You released a long sigh, rubbing your cheek roughly as you closed your eyes. "This is so fucked up... Why is this killer even targeting these girls...." You mumbled, frustration beginning to build up as you realized you were going nowhere with this investigation.

Yoongi places his warm hand on your knee, giving it a comforting squeeze although his expression doesn't change. You smiled at his sweet action before turning back to the screen where Seokjin was eyeing his phone, probably reading some of the results of the autopsies he had conducted. 

"And do you remember when I said I think some chemicals might be injected into the bodies?" Jin questioned, finally looking up, nibbling on his lips, almost looking like he might just bite them off.

You nod, remembering exactly what he was talking about. "It came out positive?" You questioned, thinking back to when you had found Nayeon and how you assumed she might have embalming fluid in her as well seeing the state her body was in.

"No," Jin releases a loud hiss, his orbs filling with frustration and annoyance. "It came out damn negative. Nothing. I couldn't find anything unnatural. Absolutely fucking nothing and it's driving me insane," the forensic pathologist spat out as he closed his eyes. "I looked at all four bodies multiple times, sent them out to the lab, but everything came out negative. I've tested every chemical that people can use to create housemade embalming fluids but nothing. Nothing was unnatural to them except their actual body's state. Although they're getting refrigerated and preserved, we can't prevent decomposition from happening little by little. And I swear to god, the decomposition of all four bodies are going through is too slow."

Just hearing Jin's voice, you can detect the stress and confusion he was dealing with. Which wasn't something you were used to. Jin was a genius in forensic studies, the man often bragging he had over 2500 autopsy counts when he's only twenty-six. There weren't many cases he struggled with but.... this killer was definitely giving you all a run for your money.

Jin sighed as he sat up in his chair, "anyhow, there's some other lab result I need to tell you. We did find drugs in the digestive system of the second victim, Manoban Lalisa. A hefty amount of sleeping pills. But," Jin pauses as breathed out slowly, "only a few of them were getting broken down. Most of them still maintained their forms and weren't dissolved yet, which makes me think...."

"They weren't the cause of her death either...." You conclude, Jin nodding in agreement, the older man's face twisting grimly. "So, we can completely scratch away the doubt that the second victim it might have been a suicide. I'm positive there's a killer somewhere out there. But I still can't figure out how these girls are getting killed. I have no idea with the first girl either. Her death doesn't make sense, especially when the venom in her system shouldn't even be found in the area she was found in. And don't get me even started on the third girl....!"

Yoongi, Namjoon and you all hold back a wince as Jin screeches, nearly pulling out his dark locks. You send a look of pity to Namjoon who had endured the full-blown screech of Jin, the man rubbing his ear to surely get rid of the ringing.

"You won't even believe it! When we were doing an autopsy on the first girl, my assistant had to run out when we were collecting the samples contents in her stomach. That kid literally flew out of the room to go throw up! That brat had the guts to leave me there although I was suffering through the smell as well! This is why we shouldn't take incapable interns!" Jin scowled, crossing his arm over his chest. He paused, his expression changing as he realized what he said, his eyebrows furrowing. "Actually, now that I mention it, Kim Yerim's body hadn't been in a bad state, but her stomach content was definitely beginning to go through quite the shit. The bacteria growth and swelling were quite marvelous..."

You make a face at Jin's words, your stomach churning in disgust, holding back a small gag as you just imagined the stench the older man spoke about. While you were okay with dead bodies, you didn't have the stomach to actually cut them open and talk so nonchalantly about it like Jin. While it did fascinate you to some level, you weren't like Jin who could easily eat lunch in the same room as a dead body.

Oh hell, no.... Just the thought about it makes you squeamish.

"Is there anything else you'd like to tell them, Jin?" Namjoon politely questioned, the man releasing a loud sigh, his shoulders slumping at his action.

Jin shook his head in response, a weak smile on his face. "Nope," the man popped the 'p' childishly, "I'm done."

Namjoon nodded in understanding before he looked back at you and Yoongi, "I'll make him send you guys the full report soon," your leader promised as he intertwined his fingers together on his desk. "Keep your eyes open and make sure you keep me updated as well, alright? If you find anything unusual, anything, don't hesitate to message me. Yoongi, I already looked through your report, and I'm doing a thorough investigation on all the people you've found suspicious so far."

Hearing this, you raise an eyebrow at your partner, the dark-haired man completely ignoring your questioning look, much to your dismay. People Yoongi found suspicious? The guy found everyone suspicious for God's sake!

"Alright, stay safe you two, keep me updated."

Seconds later the monitor turned black, a silence falls over the room. Yoongi doesn't look at you as he stands up, the man has an unreadable expression on his face.

You watch him in confusion as he walks into the restroom, closing the door behind him, leaving you alone sitting in the bed.

What the hell....?