I Don't Remember the Plot, but I Guess Gin Is a Mole

Also known as My Conan Knowledge Is All Fuzzy, but Cheats Keep Me Alive, How Can a Crown Prince Reign for 150 Years, Gin, You've Done Nothing but Evil, It's Only Normal to Poach from the Black Organization, Right? Proper Introduction: Twenty years after transmigrating, Haruki Shirakawa finally realized that the place his great-grandfather had sent him back to Tokyo from was the world of Conan. As a senior member of the Black Organization, the Boss's great-grandson, one of the distillery's heirs, and a second-generation member raised to be loyal to the organization, Haruki Shirakawa, codename Ice Wine, naturally set himself a series of goals. He would use a shrunken Shinichi Kudo to lure out the organization's moles, then clean house, rapidly expand the organization, and use his golden finger to create a real elixir of immortality. Then he'd send the Boss to heaven, take over, and rise to the top of the world. At the moment, the only thing standing in his way was... ...Who was the undercover agent again? Faced with the wildly unscientific Conan world, a timeline that kept jumping around, and subordinates who seemed treacherous but were actually loyal, Haruki Shirakawa tried to recall the few scraps of plot he remembered and fell into deep thought. The protagonist starts out loyal to the organization, then switches sides. He's the king of double agents among the fake booze, not too bright, and both obnoxious and powerful. His heart is black, but his actions are righteous. He has a cheat ability, and the contradictions in his early characterization are all foreshadowing. The organization falls in the ending, and the protagonist goes to prison. Since this is a free-for-all project, I'm letting loose. It has a happy ending (emphasis). Original male protagonist and a few original characters. The protagonist has no romantic pairing, but please note the author's personal preferences: Keiji Hagiwara/Matsuda Jinpei/Hiromitsu Morofushi and Hiromitsu Morofushi/Rei Furuya. The plot has little to do with the title. The protagonist's codename is Ice Wine for no other reason than that the author likes drinking it. The timeline begins six months before the events of Conan. It has been adjusted slightly to fit the story. Some cases and deductions are original, but they won't take the spotlight away from the original work's detective moments. Saving Date, no romance for him. Hagiwara, Matsuda, and Morofushi from the five-man police academy group exist within the protagonist's golden finger as spirits retaining a small amount of their memories. If that bothers you, proceed with caution. This is a free project, not signed to a publisher and not a paid title. There are lots of original worldbuilding details, so please don't scrutinize them too closely. Possible OOC warning. Updates are slow because I'm busy, but feel free to leave comments to remind me. I'll write a bit whenever I remember. Theme: Everyone protects justice in their own way