AU where everything is the same but Shinichi and Kaito got to grow up together as cousins instead of being separated. As babies they are both the best and worse little shits. They fought like cats and dogs but separating them just made them cry and miss each other. They play Detective and theft which ends up being kiddie versions of what their Canon dynamic/Future heists.
As teenagers they deny the crying ever happened but develop and friendly rivalry. Mostly Kaito teasing Shinichi and showing up when he least expects it. I like the idea that they check in on each other, which then starts becoming a problem when their canon plots kick in. Kaito discovers the truth that Toichi is Kaito KID and takes on the mantle to find his murderers. He doesn't go to Shinichi to this for a few reasons. One, Shinichi already deals with murder constantly and Kaito doesn't want to add to it, two he has no evidence other then Jii's word and lastly he's not sure how Shinichi would react to the truth that Uncle Toichi is a criminal and now he is too.
Have vision in my head that the Clock Tower Heist happens exactly as it did. But after that Kaito and Shinichi get on a call where Shinichi talks about this case with a weird thief he shot at. Kaito seemly is suddenly VERY ANNOYED with Shinichi and refuses to elaborate.
But then Detective Conan's plot happens and now Shinichi is SMALL. He has to deal with the normal plot but now is also hiding what happened to him from Kaito, unlike the parents Kaito checks in more. There is also the problem that Kaito will be in a lot of danger if he walks around Berika since they are identical. So Shinichi lies his little butt off to Kaito to keep him away; but unlike Kaito he's a bad liar so Kaito senses there is definitely something wrong.
But then the Black Star heist happens and those 2 cross paths as Conan and Kaito KID. Conan is struck by this person who reminds him a lot OF HIS DEAD UNCLE TOICHI BUT YOUNG. Meanwhile KID is struck by this demon turd child that looks like a clone of Shinichi + Glasses. But... that can't be him right? That's stupid. This leads to them both investigating each other. Kaito shows up at the detective agency to meet his 'long lost' Cousin Conan. Not buying the cute kid act for a second but plays along and stresses out Conan. Meanwhile Conan becomes much more invested in the KID Heists and starts to wonder and look into his dear old uncle. The one he use to play games and tricks just like this.
I imagine they both will find out about the truth. How and when I'm not sure. But I just love the idea and dynamic of those 2 if they grew up together. It just feels really fun! I might do art of this later but would be interested what other people would think too!












