Detective Conan, comprehensive fictional reasoning
Your parents Kuro Sakuragawa and Kotoko Iwanaga disappeared several years ago.
Your mother used to be the [God of Wisdom] who dealt with matters between humans and monsters. After she disappeared, she urgently needed someone to take up that position.
So the monster came to you and signed a contract with you when you were 11 years old.
With your left leg and right eye as a sacrifice to the gods, you became the new [God of Wisdom].
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Two weeks after your disappearance, you turned up on a park bench with an eye and a leg missing. The police academy team passing by saw your miserable condition and immediately called the police and sent you to the hospital.
After that, you were targeted by these people with an excessive sense of justice and curiosity - and they regarded themselves as brothers.
That being the case, get ready to reshape your worldview.
Welcome to the other side of the world, have you seen monsters?
"You" are a seasoned person who can say things like tigers and wolves without changing a look, or a lolita for short.
Purpose: People of different races can get along well with each other
After Red and Black Are Reversed, Determined to Be a Healthy Corpse