Conan Edogawa is the shrunken alias of high school detective Shinichi Kudo, created after the Black Organization forcibly administered the experimental poison APTX 4869. His physical transformation into a child demanded a new identity and lifestyle, forcing him to live with Ran Mouri and her detective father Kogoro at their agency. Despite his childlike appearance, he retains Shinichi's adult intellect, deductive abilities, and personality, solving numerous cases covertly while posing as an elementary school student and leading the Detective Boys club. In the fever-induced scenario of "The Stranger From 10 Years Later," triggered by an experimental antidote from Ai Haibara, Conan transforms back into his 17-year-old form but perceives a ten-year leap into the future. He encounters a world where the Black Organization remains undefeated and he lives as Conan Edogawa, now a high school student himself. This future includes meetings with aged-up versions of the Detective Boys, who recognize him as "Conan-kun," and televised coverage of Heiji Hattori and Kazuha Toyama as adult detectives in a romantic relationship. A critical emotional moment occurs when Conan overhears Sonoko Suzuki advising Ran to end her relationship with the absent Shinichi and consider marriage proposals from others, specifically Dr. Tomoaki Araide. Distressed, Conan-as-Shinichi searches for Ran and finds her in the Kudo family library, emotionally preparing to reject Araide's proposal. He reveals his true identity as Shinichi, pleading with her not to marry anyone else. Ran, interpreting this as empathetic concern rather than literal truth, declares her willingness to wait another ten years for Shinichi's return. Conan collapses during this encounter and later awakens in his actual child form, learning the entire experience was an extended dream induced by the antidote's side effects combined with his fever. The dream's events, particularly Ran's steadfast loyalty, deepen his appreciation for his current life as Conan despite the frustrations of his shrunken state. This scenario underscores recurring themes in Conan's experiences: the psychological toll of maintaining his secret identity, the fear of losing Ran due to his prolonged absence, and the tension between his desire to return to his original life and his acceptance of his current role. It also demonstrates his vulnerability and emotional dependency on key relationships, particularly with Ran, even as he navigates the dangers posed by the Black Organization.