Detective Conan 

 Detective Conan (also known as Case Closed) is a Japanese manga and anime series created by Gosho Aoyama. The series follows the adventures of a teenage detective named Shinichi Kudo who, after being poisoned, is transformed into a child and takes on the pseudonym Conan Edogawa.

The story begins with Shinichi Kudo, a brilliant high school detective, witnessing a suspicious transaction and being attacked by two men in black. They force him to take an experimental poison, which transforms him into a child. To avoid being caught by the men in black, Shinichi adopts the pseudonym Conan Edogawa and takes on the persona of a child.

As Conan, Shinichi lives with his friend Ran Mouri and her father, Kogoro Mouri, who is a private detective. Together, they solve a series of murders and mysteries, while Conan tries to find a cure for his condition and uncover the truth behind the men in black.

Throughout the series, Conan encounters a cast of recurring characters, including his former love interest, Ran, her friend Sonoko Suzuki, Kogoro's assistant, Ai Haibara, who is also a former member of the men in black, and many others. The cases they solve range from simple thefts and robberies to complex and intricate murders, and Conan uses his brilliant mind and deductive skills to uncover the truth and bring the culprits to justice.

As the series progresses, Conan gets closer to discovering the truth behind the men in black and the mysterious organization they work for. He also begins to develop feelings for Ran and tries to find a way to tell her his true identity.

Overall, Detective Conan is a thrilling and entertaining series that combines mystery, drama, and humor, and has captivated audiences around the world for over two decades.