brief introduction:[Conan World] + [Character Derivatives] + [System] + [Reasonable and Legal Modification of Settings] + [Daily Life]Yukiko: I never thought that the four of us would become real sisters in this way…Eri Kisaki, Shizuka Ikenami, Tomoko Suzuki: Yes! Thanks to our husbands!Sonoko: Ran, we are real sisters now! We won’t have to be apart for the rest of our lives!Huiyuan Ai: Sister, it’s great to see you again! Eh? Why does your son look so much like my husband?Heiji: Kudo, now we are brothers, right?Kudo: I guess so! Look, our sisters look so similar!Gin: The organization has FBI, CIA, MI5, and An, and there are also undercovers from other places? Vodka, how the hell do you check?Vodka: Brother, there are no Dragon Country agents yet!Tu Su: Guess which side I am from!