High school detective Shinichi Kudo is known as the "Savior of the Japanese Police" and the "Sherlock Holmes of the Heisei Era". Once when I went to an amusement park with my childhood sweetheart and girlfriend Mao Lilan, I discovered two men in black who were acting strangely. He followed them to the transaction site, where another man in black knocked him out from behind with a stick while he was not paying attention, and drank a mysterious poison called APTX4869 in an attempt to kill him, but due to the side effects, his body returned to the state of a developing child. Considering that if the man in black knew that he was still alive, his relatives and friends would be implicated, so Kudo Shinichi changed his name to "Edogawa Conan" and stayed at the home of his girlfriend Maori Ran, hoping to find the man in black with the help of his father, detective Kogoro Maori. Unexpectedly, Kogoro was not only unhelpful, but also a reckless and confused detective. So after the case occurred, Conan used the watch-type anesthesia gun invented by Dr. Agasa to put Kogoro Mori to sleep, and then used a bow-tie voice changer to imitate his voice to make deductions. He solved many cases and made many partners. He has been looking for the whereabouts of the people in the black organization, hoping to one day bring them to justice and change them back to their original appearance. In this case, Kogoro received an invitation letter, inviting them to attend a banquet on an island... [The inspiration for the story comes from "No Survival" and "The Strange Banquet", don't worry there will be a big twist]