After Transmigrating as a Seven-Year-Old Gin

[Expected pairing: Hagi] When I transmigrated as a pint-sized Gin, I thought the setting was the 1950s or 60s. Then I saw smartphones and Ayumi Yoshida. Only then did I realize I hadn't transmigrated at all, I was just wearing someone else's face! Hello, Conan. Hello, Haibara. Hello, Mr. Tooru Amuro. Cat, no, Mr. Subaru, hello. I really want to call you 486. Gin... Mr. Kurosawa, could you please stop pointing a gun at me? I swear on my honor I'm not your kid...!! And then a curly-haired guy in sunglasses whisked me away. His family has a playboy and a friendly older brother, a gentle older sister, and an uncle who looks like the honest, upright type... I took a closer look. I was absolutely stunned. Wait, aren't you supposed to be dead! Theme: Soft little dumplings are the best!