I reincarnated as a Homunculus in a steampunk world with famous 19th century characters but everyone is gender-swapped

All characters are at least 18 years old

Who am I? What am I? I remember being human. Loved by no one. Needed by no one. If my existence holds no meaning, then why am I here? I am 18 years old when I got hit by a truck. As I lay dying, I hear a voice.

"Caleb..." It sounds like a mother, her voice gentle and peaceful. "History has already started to shift. You will be the beginning of a new world. A world of gods and monsters. It all begins with you. I love you so very much, my dear son..."

Her hands touches my long black hair, so comforting.

Wait, why is my hair now black?

"But... I am the only one who ever will. Other humans will never understand you. The more you love them, the more you will be made to suffer. Because you are a monster."

I woke up naked and strapped to a bed.

A cute girl with copper hair, pale skin, and a slightly disheveled appearance approaches me, wearing round glasses and a white lab coat.

"Are you okay?" she asks. "It's been two days since you were out."

"What happened? Am I dead?" I ask.

"You were in a manner of speaking. But I have reanimated you. Do you have any memories of being alive."

"Yeah, I was hit by a truck. I noticed my hair is a different colour."

"That is because your brain is inside a different body."

The girl undoes the straps and I get off the table. I look in the mirror to see a feminine looking green skinned boy with long black hair with white streaks going down both sides. If not for the monster cock, I would have thought I had reincarnated into the body of a girl.

"It's like one of the isekais I watched." I say.

"I don't know what an isekai is." the girl says. "My name is Victoria Frankenstein. I created you. I would shake your hand but I'm afraid you might crush my hand."

Her voice sounds different from the one I heard earlier.

"Victoria Frankenstein? Like Victor Frankenstein?"

"I don't know who that is."

"This is exactly like that novel and those 1930s movies."

"That's impossible. The year is 1888."

"I'm not from your world. In my world there is a genre of Japanese fiction where people die and reincarnate in fantasy worlds. I think that's what has happened to me."

"It sounds more likely that the reanimation process affected your brain. Listen, I'm going to need you to stay in this mansion while I carry out some research."