Wel, Ive checked chapter 821 of the Detective Conan Manga, where we discover what we were suspecting: Sera is Shuichi's sister. For me it's weird cuz he as with Akemi who had a sister the same age (which is Shiho, my favorite character) So, I need an opinion, what do you think will happen when Shiho and Sera learn that their siblings were bf and gf??? Also, do you think you like Shuichi's sister??????? Please answer!!!!!!!!!!