It all started when Hattori gave Shinichi some manga to read. Of course Kaito was the only one who actually read them. And of course one series had to catch his attention, to the levels of obsession. Now normally Shinichi would have left his boyfriend to his latest guilty pleasure and been done with it, but one day after demanding to know why Kaito had been staring at him for five hours he was forced to take an interest in the series known as Death Note. So now he sat pinned to his favorite chair in the library. Kaito was staring at him with a deadly serious look that made the detective nervous.

"You are L, which means I would have to be Light since they are so obviously in love," Kaito commented, tone unusually harsh. "But Light kills L, and I could never kill my beloved Shin-chan. So who am I" The magician looked so confused, as was his detective. Shinichi honestly did not know how to answer that. Unfortunately when he mentioned that he did not know who L or Light were Kaito had forced his precious tantei-kun to marathon the anime based on the series, and then read the manga. Shinichi was unsure if he should feel offended at being compared to the sweet crazed detective with the horrible posture and social skills. If he was being honest with himself he could see the similarities. Both had…questionable eating habits, good deduction skills, and a fascination for those with certain criminal intentions. Though he would never be interested in a murderer, as a friend or otherwise. Plus his thief was nothing like the psychotic Yagami kid. However even if telling Kaito this made him feel a little bit smug, and thus lighten his mood momentarily, he still deflated when he realized that his original question was not solved.

"Why does it matter? So I have a few things in common with one of your fictional characters. So what? L doesn't seem to have any romantic feelings for anything other than cake, and Yagami doesn't seem to be capable of emotions at all. Honestly if you're going to be comparing me to fictional detectives I would much rather it be Sh-." Shinichi started to say, but was cut off by his lover.

"You don't understand Shinichi! They are meant to be together! Just like we are meant to be together! They complete each other! Light is the frosting to L's cake, and you are the cookie to my milk. Things come in pairs, but they can't be a pair because Light kills him! If he could betray his other half than I could end up…betraying you." Kaito said softly, and finally Shinichi felt like he was starting to understand what the other was thinking. Often times Kaitou Kid was told he was no better than any other criminal. Usually Kaito seemed to just shrug it off or laugh it away, but perhaps he actually took some of those hurtful words to heart. It was possible that the magician was worried about losing himself to the thief, and then to something much darker. It was a fear Shinichi knew well. As a detective he was exposed to some of the world's most horrific sides, and there was a part of him that feared that one day he could cross that line and become like the murderers he so diligently put behind bars. On his bad days that fear could paralyze him, and cause him to hole himself up in the library. Surrounding himself with examples of people doing good despite the odds. Of course the one thing that really made him know that he would never cross the line was Kaito himself. He would never want to do anything to disappoint his magician, and even as a thief Kid had a no one gets hurt policy. So Shinichi becoming a murderer would ruin Kaito, and the detective never wanted that.

"It's ok Kai." Shinichi said softly, bringing his arms up to wrap them around the other's neck. Kaito made a startled noise as the detective pulled him down into a kiss. "I'll be your Light. No matter what shadows you go up against I'll be there to light the way for you. You won't get lost, and I won't abandon you. I swear it." The vow was whispered against the other's lips. Kaito's beautiful indigo eyes, which had gone incredibly wide, now softened. He leaned in and met Shinichi's lips in another kiss. It said all the words that the magician could not bring him to say. That he understood and appreciated Shinichi's words, that he would be there to do the same for his lover, and if by some sick twist of fate he failed in this self-imposed mission he would still love Shinichi and do everything he could to stop the other and help him get well again. Just as the detective thought things would get a little more heated Kaito pulled back, the serious look back but with a playful glint to it now.

"You can't be Light Shin-chan." The magician said, and paused briefly with a thoughtful look before continuing. "Well you are my light, but not my Light. Because he is a bad guy, and honestly you could never be that stupid. No you are definitely L. But we need to focus on me. Because Hattori's Death Note party is this Friday, and we have to dress up for it! There is going to be a contest for best pairing cosplay, and the only ship we can pull off is L and Light!" By the end Kaito's tone had taken on a decidedly childish whine. Shinichi felt his eye twitch. While there were obviously some of the issues they had just talked about lurking in Kaito's demented little head the conversation and stolen day wasted on anime and manga was really just so he could get Shinichi into a costume. Knowing Kaito he was probably more upset that L didn't wear something more like that blond fellow did. Now that, Shinichi thought, was a good idea.

"You know Kai. I agree with you. You aren't Light, and for that I am grateful. Honestly any chemistry between him and L felt forced. I don't think I could ever see the two of them together. I think there is a character who fits you much better who would go much better with L anyways. If we were to dress up as them I don't think I would mind it so much. I might even like to go to the party dressed as L with you dressed up as his real match." Shinichi said, looking at his lover with half lidded eyes. He had to fight the urge to smirk smugly as he saw Kaito visibly gulp in need and anticipation.

"Anyone my tantei-kun wants. You know I am always more than happy to take your requests." Kaito said with a roguish grin that had girls swooning all over the country. Shinichi filed that information away for later as there was a Sherlockian convention coming up with a similar contest, and this year he was anxious to prove to Hakuba that while Irene was possibly the only woman Sherlock could love, their idol would be too busy doing the dirty with his dear doctor to take any sort of romantic interest in her. Besides it was time that a Johnlock couple one already damnit!

"That's good to know Kaito. Any performer worth his salt needs to be willing to take the fans' opinions into consideration. As for who I think L would be more likely to end up with. Honestly it is quite obvious. If L is me than he would end up with the hot guy with the wild bad boy streak, and chocolate addiction." Shinichi said with a laugh. Chuckling even more at the astonished look that crossed Kaito's face. Obviously he had never thought of pairing the two together, and he was probably wishing he had tried to get Shinichi into the blond man's leather pants. "So will you be my Mello Kai?" With that one question all thoughts of Light had been shoved completely out of the magician thief's mind. All he could do was nod as his brain began working on a thousand and one different ways to get Shinichi into some leather pants. Even those thoughts were lost as Shinichi pulled him into that more heated kiss he had been deprived of earlier. At the end of the week they ended up taking the contest's grand prize with a landslide vote. Much to the disappointment of Hakuba and Hattori. How Hattori convinced Kazuha to be the Rem to his Ryuk was beyond them, and Kaito swore vengeance on Hakuba for dressing as Light with Aoko as his Misa.