What is the real meaning of Sister outside the field of Detective Conan?

Sister's English "sister" and English "territory" in the field mean to remove the field. Because the root of "territory" is "terr", then "off-site sister" means removing the "ter" of "sister" and leaving only "sister". SIS stands for Military Intelligence 6, the full name is "Secret Intelligence Agency", and the code name is MI6. This is also officially confirmed in the 24th drama Detective Conan: Crimson Bomb.

The heroine has appeared before, for the first time on TV? After the case was solved, Shiliang asked Edogawa Conan to help him find his mobile phone 2. Conan found the mobile phone under the sideboard and saw the picture of Shi Liang and the mysterious girl lying in bed on the screen.

Because of the girl's hair color and the same eye shadow as Akai and Shiliang, many readers have speculated about her identity. Speaking of introducing sisters, the name comes from TV 763, that is, File.879 Conan said that when he sent an email to Shiliang asking about the identity of the mysterious girl, Shiliang told him that "the child is my sister outside the venue".