(A/N): Since I made a oneshot before about the reader being a fangirl over L, of course I was gonna make another where L is being a fanboy over the reader. I'll try to keep it as original as possible!!

Today was insanely busy. There was so much to do with this case that had come up.

You barely had the chance to talk to anyone. Your face was buried in work.

'I need a coffee...' You thought to yourself as you worked.

That was a good idea actually.

You stood up, which broke the silence. Everyone turned to look at you.

"Everyone's been working so hard so I thought I'd grab everyone a coffee. Who wants one?"

Pretty much everyone threw their hand in the air.

"Hold on (Y/N)! I'll help you!" Matsuda got out of his seat and went to help.

"Me too!" Misa went too.

The others got back to work.

L sighed quietly to himself as he worked. It was getting to him, but he tried not to let it show.

He was almost falling asleep at how stressed and tired he was feeling because of this pile of work.

He was suddenly wide awake when he heard his computer go off.

'Huh?'

He got a notification through his computer...from his fan blog?

A fan blog?

The thing was, L was actually a fanboy. He was a huge fanboy to this female singer, and about a month ago, he had created a fan blog to spread his love for the singer.
Although, he didn't want anyone else to find out that he was such a huge fanboy. It would ruin his reputation!

"What was that noise, Ryuzaki?" Light asked.

"Nothing...Just Watari sending a message regarding the case. Nothing you should worry about..." L said, calmly.

Light just shrugged it off and got back to work.

L looked around the room, without looking noticeable. He saw everyone working as they had been. They weren't paying attention to him.

'Good...'

Quickly, L decided to check his fan blog. He clicked onto it and it popped up on his screen.

He looked around again.

Everyone was still working hard.

He breathed a sigh of relief and got back to it.

What he found made his heart jump...

Tickets to see his favourite singer live!!

'I...I have to get one!!' He thought to himself.

But how could he? It's not like he could simply buy the tickets and get them delivered here. One, that would mean that a normal person would know the location of the taskforce, and second, the members of taskforce would find out he's a fanboy and laugh at him!

'She's going on tour in 2 weeks! This is risky...What am I gonna do?! I need one...!'

Just as L was stuck in deep thought, that wasn't related to the case, you, Misa and Matsuda walk back into the taskforce carrying some mugs of coffee.

Matsuda and Misa went to give the mugs of coffee they were holding, to the others but you stop to glance at L.

He seemed very frustrated about something...Was the work really getting to him?

"Something wrong?" You ask him, to which he jumps and switches the screen to his work.

You noticed him changing the screen but didn't get a good look at what it was. It made you suspicious...

"Nothing's wrong (Y/N)" L replied. "Did you bring the coffee?"

You were still for a second, before handing him a mug of coffee.

"Thank you. Gotta get back to it then" L said, putting his mug on the table and getting back to his work.

You stare at him a little more then head back to your own desk to do your own work.

'What's up with him?' You think to yourself.

'That was close...' L thought. 'Too close...'

Later

Soon, everyone had caught up with work and everyone could finally go home and take a break.

Everyone had already left a while ago but you still remained in the taskforce.

"Damn! I can't find my phone!" You say to yourself as you check your bag.

"Where did I leave it? Hey L? Have you seen my-"

You turn to L, only to see he wasn't there.

"Nevermind then..."

You search all along the main floor, only to not find it. So you had no choice but to go upstairs and check all the rooms.

You checked all the rooms but no sign of your phone anywhere.

It all came down to one more room. L's room...

'Man...He'd hate me if I walked into his room without permission...But this is a serious issue!'

You take a deep breath and open the door to L's room.

Immediately you stopped in your tracks.

L's room was definitely not what you expected...

His room was filled with...posters and merch all related to this one female singer.

One that you recognised yourself!

'No way...! He's a fanboy?! And a (F/F/S) fanboy too?!'

You were definitely surprised as L never seemed like the type to buy posters and merch or just be a fanboy in general.

He had so many posters! Ones that you hadn't even seen before. You were amazed. Genuinely!

'He's got so much! Wow! What a hard-core fan!'

"What do you think you're doing?!"

You heard words full of rage, that sent shivers down your spine. You slowly turned around to see L standing behind you, with his arms folded and his face looking...pissed!

"My room is off limits to everyone! Including you, (Y/N)!"

You suddenly remembered why you actually went to L's room and thought you could explain it to him.

"I...I can't find my phone and I've looked everywhere and still can't find it. I was just going to check if it was in here" you say quietly. You were feeling a bit scared at what L might do.

L didn't say anything as he reached over your shoulder and pulled the door, slamming it shut, and returning to his folded arms position.

"You could've asked me to check for you."

"I didn't know where you were though! This place is so big!"

L was silent again but he still looked pretty mad.

Now it seemed to make sense. L seemed pretty odd this morning. You caught him doing something but he quickly got back to work and denied it. Was he hiding his inner fanboy? It was obvious he doesn't want anyone in his room. Is it to hide his inner fanboy too?

"I'd never thought you'd be a fanboy though, L" you say, making L's expression and posture change.

"That's why my room is for no one but me to access!" L said as he started to feel a bit embarrassed. He looked away from you.

Ah, so he was hiding it.

It was actually pretty cute to see L this way. On the outside, he's this calm, cool and collective guy. But on the inside he's a cute fanboy!

What made it better, was that he liked one of your favourite singers too!

"I did see your posters and merch! You're a fan of (F/F/S) too?!"

L shot his attention back to you.

"What a nice surprise! I'm a big fan of her too!"

"Y-You like (F/F/S)?" He was obviously surprised about that.

You nod.

"I actually have a fan blog where I post stuff about her! She's amazing! And her voice is so soothing! I like to listen to her sing when I read. It helps me relax."

L's eyes widened and he smiled.

"I...I have a fan blog too! My username is TrashFan_For(F/F/S). Sounds dumb, I know" L laughed.

"No way! I follow your blog!!" You say.

"What?!" L gasped.

"Yeah! My username is (Make a username peeps!). I know it sounds silly, but I came up with that name when I was only 13" you giggle.

"I do know that username!" L said. "You comment a lot on my posts! I remember I posted something saying: 'If I wasn't graced with (F/F/S)'s amazing voice, I don't know what kind of music I'd listen to' and you commented something like 'MOOD!' in the comments!"

"Oh my god, that was me!"

The both of you laugh.

"I can't believe I found another fan! And I never thought it'd be you, (Y/N)! Now we can talk about (F/S/S) after work!" L smiled, suddenly full of excitement. "There's so much I want to tell you! Like how I got into her music, how long I've been a fan! Please look forward to it!"

"Sure! I'd love to hear everything" you smile back, making L smile a smile you never thought was possible for him.

"Also, did you hear that she is going on tour soon?! That was why I hid my computer screen and denied everything to you (Y/N). I'm sorry. I just didn't want you to make fun of me because I didn't know you were a fan."

L's face soon went from happy to a little worried.

"Th...That reminds me...You can't tell the other taskforce members about me being a fanboy...okay?"

"I guess it's because you don't want them to think of you differently from how they view you now?" You say to him.

"You've always been smart" L stated.

"I'm sure if we both explain, they won't think of you any differently from how they view you as the world's greatest, calm, cool detect-"

"No!"

L grabbed your hands and held them tight, catching you by surprise and making you blush.

"Please don't tell anyone else! They will make fun of me! They'll think of me differently and I don't want that! Please (Y/N)! It could ruin the only reputation I have!"

You did understand what he was trying to say to you. It is an awful feeling when someone views you differently from the way you wish to be viewed. It really can hurt.

You nod and look up at him with a smile.

"Okay, I won't tell anyone else! I promise!"

L let go of your hands and smiled back.

"Thank you."

"Well, this is gonna be a slight problem. How are you gonna get tickets for her concert?"

"I was thinking about that myself. I can't let the tickets come to the taskforce for two reasons. One, the location of  the taskforce will be leaked to another person and who knows what they could do. There's a risk my identity could be revealed. And two, the other members will find out I'm a fanboy..."

"..."

"Wait! I have an idea!" You say. "I'm gonna be getting a ticket for myself. How about I get one for you two and get them delivered to my house? I can bring them to taskforce in my bag. And if they happen to be discovered, I'll just say I forgot to take them out and that they're for me and my friend. Then when everyone leaves, I can give it to you."

L's eyes widened.

"W...Would you...do that for me?"

"Of course I would L. You deserve to be happy too!"

L tried to say something but no sentence would come out of his mouth. He looked so happy he could cry. But obviously, he's L. He's gone through so much and never cried so there was no way he would-

Oh my god he started crying!

"Thank you! Thank you!" He managed to get out, wiping the tears from his eyes.

"No problem!" You smile.

He was so adorable. He was crying because he was so happy. He never really had the chance to be really happy when his face is buried in work and solving cases. This was the first time he was going to feel really happy in a long time.

"I'm so grateful! I'll give you the money towards it! I promise!" L said.

"Don't bother" you giggle. "Look, I have to go and find my phone. It's getting late and I need to get home."

"Oh of course. I actually have your phone with me. You must've dropped it when you were wondering through the halls with the bundle of work earlier. You were so busy that I didn't want to disturb you. So I kept it in my room for until you needed it again. I found a lot of nice photos."

"Hey! That's my privacy!"

L laughed a little and headed into his room to get your phone.

"You can come in now, just make sure you shut the door."

You walk in and close the door behind you.

It was at that point you spotted a figurine.

"OH MY GOD! THAT'S A (F/S/S) FIGURINE?! I DIDN'T KNOW THEY DID THESE! WHERE DID YOU GET IT?!"

"I think Watari got it for me when I was still in the orphanage. I have no idea how he got it though. I think he had some connections to a figurine making company and they made one for him and he gave it to me."

"That's so cool!!!! You've been a fan for so long!"

L laughed.

"I'm just confused as to how you got all of your merch here without anyone noticing!"

"Most of it was put in the boot of our car and my posters and the figurine was put in the back seats where I sat. Watari drove us to the taskforce and we just looked like your typical adults driving down the road. We were the first ones in the taskforce so it was easy to put the stuff in my room without anyone else noticing. And ever since the taskforce members have been here, I've kept it all hidden from all of them them."

That last part was...kinda sad.

"Anyways, here is your phone" L handed it to me.

"Thanks" you say, taking it. "I should get going now. I actually stayed here longer than I should've. But it wasn't bad." You smile at him. "I'll order the tickets tonight and I'll get next day delivery! So I'll get it to you tomorrow! Have a good night L!"

You open the door to leave, but L closes it.

"Will...Will you come to the concert with me?"

That was unexpected.

"Huh?"

"Well...you see...Watari never took me to any of her concerts in the past and that made me upset. He won't take me this year either. I don't want to go alone because I don't do very well in social situations on my own. So...please? Unless you're gonna go with a friend or family member..." L gripped onto the bottom of his shirt and looked down at the ground. You could see his face going red.

You smile, with a slight blush across your face. "Of course I'll go with you! I'd love to!"

L looked up at you. "Really?!"

"Sure! None of my friends or family members are into the music I'm into anyway, so I was happy to find out you were a fan too! Of course I'll go with you!"

L made a cute fanboy noise that made you smile even more.

"Well, I guess I'll see you tomorrow then!" You say as you leave his room.

Next Day

"Good work everyone!" Misa said.

"You didn't even do anything..." Light said.

"I gotta go to a photo shoot now with Matsuda as he is my manager. See you Light" Misa said as she left with him.

"Yeah, whatever" Light said. "Hey dad, Sayu said she bought a movie and she wanted all of us to watch it with her tonight."

"Sure. We could do that if we get home quick enough. We can catch the next bus back" Mr Yagami said as the two headed for the closest bus stop.

Aizawa left to see his wife and daughter.

And soon it was just you and L left in the main room of taskforce. Watari was upstairs still working.

"Here's your ticket!" You handed L his ticket and you could see his dark, dead looking eyes sparkle as he took it from you. They lit up when he looked at it, as if it were glowing.

"You have no idea how grateful I am to you (Y/N)! Thank you so much!" L smiled.

"It's no trouble!" You smile. "Let's have lot's of fun at this concert!"

2 weeks later

Until now, everyday after the other members went to their own home to visit their families, you would always stay back to talk to L about (F/S/S)! L always told you so much! You were honestly amazed that you didn't know half this stuff yourself!

You and L were at the concert, waving your glowsticks and jumping up and down, singing the songs.

You became out of breath and turned to look at L who was still jumping up and down with a huge smile on his face, waving his glowstick.

He looked so happy. Like he was finally at peace with the world. It made you feel so happy to see him this way. You wish for him to always be this way.

It seemed he caught you staring and stopped jumping to look at you.

Immediately, his face went red and he began to bite his fingernail.

"Is something wrong (Y/N)?" He asked, looking away from you.

You giggle.

"No, of course not. I'm just so happy to see you so happy about something your so passionate about."

He smiles back.

"Thank you for coming with me today, (Y/N). It's much more fun with you here."

You blush as you giggle at him.

"I'm glad."

Soon, the light's changed and you both gasped. Both of you knew exactly what was gonna happen!

"Oh my god! This is my favourite song!" You say.

"Mine too!" L says.

"Let's jump as high as we can and make as much noise as we can!! Maybe she'll see us!"

"Yeah! Let's do it!"

With the taskforce

"Hey, where's (Y/N)?" Misa asked. "I thought she would be here by now..."

"Is she sick today?" Matsuda asked.

"It's weird 'cause L's not here either..." Light said.

The three looked at each other, confused.

"Let's just say the two had to talk about some work related business outside the taskforce" Watari said, appearing from the top of the stairs.

"...Huh?"

'L...You never cease to surprise me' Watari thought to himself.