Detective: I Am the Descending Sister

She was born into Detective Conan and became Rei Fangtani's sister. She was abducted at the age of five and entered the black organization at the age of seven. She met the young boy Gin. The two children warmed each other and redeemed each other. It's really bad to enter this world of death. Anzi has a split personality. Most of the time, he is the seven-year-old Anan, codenamed Martini. It is elegant, noble and fragrant, half dry and half sweet. The taste feels very "split" and makes people unable to put it down. The heroine is childish most of the time and never grows up. The group's favorite bastard yyds! No one can touch my brother. Everything my brother cares about is what I want to protect. Gin x Martini, Bourbon x Scotland The main plot is about something happening, there are two male protagonists