Crossover: Who Added This ABO Setting?!

Ieiri Shoko, age unknown, gender unknown. Lives in Beika Town. She goes to school in the hometown of a certain elementary-school detective. Her adoptive family agrees she's emotionally stable, and she's good at keeping her sanity intact in an ABO world. By day, she experiences high-altitude bungee jumping from an overlook. By night, she tests her endurance against human intelligence. She never leaves today's stress for tomorrow. The doctor says this is perfectly normal. “The evil blond, white-haired, and black-haired weirdos keep showing up in my life. I don't know what they do for a living, but they always appear in strange, bizarre, decidedly non-everyday situations...” “And because of them, I discovered how strange my own background is. For instance, I can be seven years old and in elementary school today, sixteen and speeding on the highway yesterday, and twenty-eight and lying in a coffin tomorrow.” The short-haired girl in her Teitan Elementary uniform holds up a candle, her expression numb as she speaks. “...” The seemingly seven-year-old, but actually seventeen- or eighteen-year-old detective/scientist elementary schooler falls silent. “...There's a difference between a supernatural story and a ghost story, right?” The girl slowly raises her head. Her eyes hold three parts resentment, three parts cold indifference, three parts acceptance, and one part let's just destroy this world. “Then, Edogawa, do you think a world where alpha, beta, and omega exist alongside men and women as six genders, and people can secrete hundreds of different scents, isn't a ghost story?” “...” Meanwhile, a certain blond Public Security agent, whose fragmented memories from his past life are resurfacing, watches his hot-tempered curly-haired colleague and his sake-scented, long-haired colleague. Don't fight. I'm grilling meat... Who was it that added the ABO setting?! A certain phantom thief: “...Damn it, who made a wish on Pandora?!”