As soon as Jiang Xiaobai opened his eyes, he found that he had turned into a child and arrived at an unknown place. He was picked up by a child who was also a child. The child said that his name was Edogawa Conan, etc.! Edogawa Conan, isn't that the Shinigami elementary school student? Good guy, this is time travel, so Jiang Xiaobai transformed into Edogawa Conan's Watson, helping him find the truth about the dark organization and the antidote to grow bigger again.
PS: Attack won't appear until very late, so you can take a guess.
Intent: On the importance of assistance