This is an idea that I have and I decided to run it. I wanted to combine the intellect and inspection of detective Conan with the magical and whimsical way of Fairy Tail. Here are some things about this crossover. This will be more of a Conan/Ai story, even though I am a shipper of Shinichi and Ran I still love the ideas and potentials of this ship.

Also, it has been 7 years since both have taken the shrinking drug, making both Conan and AI 13 years old so they can interact better. Hey, the author stated the entirety of Detective Conan is of a year, year and half but it's been decades.

Last one, the arc that Conan and Ai will be getting into is the Grand Magic Tournament. Now lets the mystery and magic begin.

It has been 7 years since the park incident. Shinichi Kudo also knows as Conan Edogawa kept this hidden life from his best friend and future girlfriend Ran Mori after all this time. While some of the big criminals that he and his friends have dealt were defeated, some weren't. The Black Organization was still at large, Kaito Kid was still out there and neither him nor Ai Haibara had turned into their real ages. So, at the moment they and the detective kids were attending Junior high and dealing with something worse than mysteries: Puberty.

At the moment Ai was at Dr Agasa house, where the inventor would show his latest invention.

Dr Agasa was with a sheet covering something big, and like always he was super excited.

''Good news Ai.'' Said him.

''What is this time?" Asked the girl reading a magazine.

''You know about the theory of the multiverse? Well, I decided to be the first one to explore it. So, behold…. The Tele mundo verse. The first machine that can take people to other dimensions!' Scream Dr Agasa.

Ai looked at the latest invention. It was a huge teleporter, with a transparent glass surrounding. While that idea was interesting, it was impossible to go into the multiverse.

''This is gonna blow up, isn't?" Asked Ai.

''Oh come on! Live a little bit, don't you wanna explore the multiverse?' Asked Agasa.

''You know that this impossible. The multiverse is just a myth. By the looks this machine will cause something to a person DNA.'' Said Ai all cold.

''I miss when you were six years old. I mean you were always like that, but it got even worst. How is that possible?" Asked Agasa.

''Puberty.'' Said Her.

''Yes, that's makes sense.'' Said Agasa.

Soon Conan appeared. He looked like he was in junior high when he was Shinichi, however with glasses and a new haircut people wouldn't see him and Shinichi as the same person.

''Hello there!'' Said him

''Shinichi, how have you been?" Asked Dr Agasa.

''Good. Just finished my homework for the week.'' Said him.

''So, you are just killing time?" Asked Ai

''Yes, so do you have something new Dr?" Asked Shinichi.

''Oh yes, I am almost done finishing building a multiverse teleporter.'' Said Agasa all animated.

Shinichi only look at the Dr with a doubt look.

''don't you think is a little bit impossible? Have you been watching old Sci Fi movies again?'' Asked Shinichi.

''Oh not you too. I missed when you kids were intrigued by everything.'' Said Dr Agasa.

''remember that it was the others that loved every single thing that you had.'' Said Ai

''You should be at Detective Kogoros place.'' Said Agasa

Shinichi only laugh at that.

''Why aren't you with Ran?'' Asked Ai.

''She and her dad are going to be out. I need to come up with a plan for Shinichi ´´Big Trip in Scotland´´. Is not easy answering her phone calls all the time.'' Said Conan.

''Oh, so double life at the moment is not easy anymore.'' Said Ai.

''Yes, its worse than ever.'' Said him all tired.

''I feel that I am the gifted one here. Everyone that knew Shiho is so long dead. You need to create better scenarios, you might be smart as a detective, but you fail as an actor.'' Said Ai with a smirk

Conan only looks annoyed at Ai. Sometimes she was the worst.

''Shut up! At least I tried to do something, and unlike you I want to get back to normal so I can be with Ran and…'' Said Shinichi going too far.

''Wow, Shinichi calm down.'' Said Agasa.

''Sorry. I just…is hard.'' Said Shinichi.

''I´m sorry.'' Said Ai.

''Where are the kids?" Asked Agasa

''They´re out buying tickets to a show. We are not going because it's boring.'' Said Conan.

''So, you two are just going to hang out here?'' Asked Agasa

''Yes, maybe we will see another dimension.'' Said Ai with a hint of sarcasm

Conan laugh at that. Sometimes Ai can have her funny moments, but it was a miracle to see her crackle a joke or something. While Dr Agasa kept trying to prove his theories, Conan looked at the machine and thought.

''Another dimension. Can be possible? No, it's just a theory.'' Thought him with wonder.

Meanwhile in another dimension.

Team Natsu was on the beach where they would be training for the Grand Magical games. Everyone was ready and prepared to go forward with any challenge.

''Ok everyone. This where we will train.'' Said Erza

''We have three months to get into shape!'' Said Gray.

''So, let's do this Team Fairy Tail!"' Scream Natsu.

'Yeah!'' Scream the rest of the team.

Team Fairy Tail was ready to train for the game. Little did they know that in a few days they will meet two people that would blow their minds.