Detective: Conan calls me brother-in-law?

Story of: Detective: Conan calls me brother-in-law?【Conan Fanfiction】【Single Female Protagonist】【Early Black Force】【Low Presence System】【Relaxed Daily Life】(Currently confirmed that Ai will appear in Chapter 31) I traveled to a child and lived a fearful life for more than ten years, until one day I was transferred to Japan for a mission and came to the legendary Beika Town, where I met Kudo Shinichi, who is known as the "Sherlock Holmes of the Heisei Era"... Oh my god, I traveled to Conan's world? Then I can... What? ? ! ! You said I am Xiaolan's brother? I just fooled Conan into thinking he was my son, how could I let him call me his brother-in-law? ! ...