What Should I Do After Finding the Liquor Factory Boss as a Child?

[Completed] A young man codenamed Bourbon is a Public Security officer undercover in a criminal organization. He diligently juggles a thousand faces, putting on a brilliant performance as the mysterious type to fool his clueless teammates. Under the alias Amuro, he works as the handsomest waiter in Beika at the restaurant beneath a certain detective agency, while moonlighting as the sleeping great detective Kogoro's star pupil. Although his childhood friend and several fellow officers often campaign for him in the "Most Eligible Man in Beika" contest, leaving him besieged by admirers who come looking for him, his life undercover is not all that hard to bear otherwise. He just has two things on his mind at the moment. First, the puppy "Haro" he picked up has gotten so fat that even a disciplined undercover agent can't stand it. Second, the child "Kazuki" he picked up denies secretly giving the puppy extra food. Oh, speaking of the child he brought home, he thinks there may be a third thing bothering him. He has discovered that the child's "father" is not only the boss of the criminal organization he has always wanted to arrest, but also seems to have designs on him. Amuro Kazuki is a first-grade elementary school student, about seven years old this year. Why "about"? The hospital says his bone age is seven, but he doesn't know how old he really is, and neither does the big brother Amuro who picked him up. That's right, he's just a pitiful, amnesiac test subject from a mysterious organization. Don't ask how he knows all this despite having amnesia. He also knows that Big Brother Amuro is an operative with a codename in the organization, that Conan is Shinichi Kudo, the victim of the organization's schemes, and that the organization has a terrifying killer with white hair... It can't be helped. Even though he's lost his memory, he's still clever, and Big Brother Amuro is just too kind to him. Then one day, amid the chaos, he runs into the top killer his friends fear most and the organization's famous mysterious female celebrity. Intercepted, Kazuki silently wonders: Are they going to take me back for experiments? Looks like we'll have to part ways this time, Big Brother Amuro. A massive explosion. Scalding air. Dust turns to blades, cutting his throat. Blood and fire burn at the same time. The killer and the beauty bow to him together, their voices filled with both delight and exasperation: "Boss, have you had enough fun?" One day, the blond undercover agent comes home and finds several more kids in the house. Kazuki introduces them: "Big Brother, look at this white-haired kid who always wears sunglasses! His family abandoned him because his eyesight is bad. He and Big Brother both have light-colored hair, so from today on, his name is Amuro Satoru!" The kid in sunglasses feels his way to his feet, looking surprisingly cheerful. "Bro, from today on, we're real brothers! Since we have the same surname, can I have that cake you're holding?" Amuro Kazuki introduces another one: "This kid has black hair and curly hair just like me. It's obvious we're related, so from today on he'll take my surname and be called Amuro Osamu!" The child in a sand-colored trench coat, wrapped in bandages from head to toe, hugs himself with a weak, pitiful look. "I'm allergic to all ultraviolet rays, so I have to wear bandages all the time. All I need each day is a box of bandages and a can of crab meat, and I can bravely keep living. If I ever don't want to live anymore, please don't reject me, Big Brothers Amuro!" Kazuki pulls one more child from behind the door. "Big Brother, you should know this last one. He's my best friend, Edogawa Conan, a super cool famous egg who can fly on a skateboard!" Edogawa Conan, wearing black-rimmed glasses, tilts his head up and flashes the most first-grader-like smile in the room, all innocence and purity. "Big Brother Amuro, I came to play with my friends!" The Public Security officer silently pulls his own child back. He takes a deep breath and thinks, Are there even any actual children left in this day and age?! Later on, the blond Public Security officer realizes that there really aren't many actual children left these days. Long, seaweed-like hair spills down alongside the sunlight. The young boss of the liquor company bends slightly, then holds out his hand. "For the sake of expanding the Amuro family and ensuring the healthy growth of the next generation, I have a duty to preserve peace and social progress. I've decided to turn over a new leaf and bring the organization into the light by the end of the year." The blond Public Security officer asks, "Where is this next generation you're talking about?" "I'm younger than you, so obviously I'm the next generation. Besides, I've already changed my surname to Amuro. Are you going to abandon me?" The blond Public Security officer says, "But my surname is Furuya." The boss smiles gently. "Then, if you'll allow me to marry into your family again, I'll give you all my love and loyalty..." "This isn't a deal. Even if you don't allow it, I'll give you everything." "...Wait, what do you mean, 'again'?" Reading notes: · Karasuma Kazuki x blond undercover agent. Happy ending. · The romance only begins when he is in his adult form. Kazuki really has amnesia, he's not pretending! It's a sweet romance (so they say). · Some details about the original story are author inventions. The Boss has supernatural abilities. · A crossover with a little Bungo Stray Dogs, Jujutsu Kaisen, Katekyo Hitman Reborn!, and The Disastrous Life of Saiki K., possibly others. No power-scaling battles. · No objectionable themes. Theme: Guide them onto the right path toward the light