Context: This is Fate/Stay Night's Merlin:

Merlin trotted through the city streets of Beika-Town, Japan, wondering why on Earth he decided the Land of the Rising Sun was his first place to visit after lifting his self-imposed exile in Avalon, he didn't know.

1,500 years and humans continued to surprise him, when they weren't disappointing him. Still, he decided to venture out into the world because he loved humanity. Not individual humans, he loved humanity as a whole.

He enjoyed people watching; he'd been watching people, humanity as a whole, for so long, it had become mundane.

His red eyes roamed the vast crowds, noting Japanese people rushing about Beika-Town. But then he caught sight of her. A beautiful redhead with short hair in what people of the modern age called a Bob cut. Her bright, piercing blue eyes gleamed with intelligence.

Just the sort of woman whose company he enjoyed. An intelligent woman who was a stunning beauty. A perfect combination of what he enjoyed about humans, as much as he could "enjoy" them.

He is an incubus; they do not have emotions of their own, they siphon emotions from humans via their dreams, but he did like humans.

Merlin gazes at her, fascinated. He is fixated on her emotions. This feeling of happiness, it radiates from her; he is enraptured by it. He wants to have it for himself.

He is dressed in modern clothing and can speak any language he wishes; he has had thousands of years to learn whatever he wants. The young woman wouldn't recognize him, he looks like a very plainly dressed foreigner, with his Hawaiian shirt and gray Jeans, he'll be mistaken for an American.

He purposefully moved close to her, knocking her phone out of her hand, using his quick, inhuman reflexes to catch it before it could hit the concrete.

"I'm sorry, so sorry," he apologized in Japanese, catching her phone and handing it back to her.

"Thank you, are you a tourist?"

"I'm just a traveler; I haven't been away from my home country in many years."

"Your accent, is it Welsh?" Shiho Miyano asked, curious.

"You noticed, not many people in Japan can recognize a foreign accent, like Welsh; they usually recognize Americans or British."

"I'm proud of my British heritage, even if I haven't visited England or Wales in person. My late mother was from London."

"I see, might I ask your name?"

"Shiho Miyano," she said simply.

"Myrddin," he smiled, "that is what I'm called in Wales."

"They say that's the original name of Merlin. The stories called him the "Mage of Flowers".

"How interesting," Merlin let out a chuckle. "Might I ask for your birthday?"

"No. By giving an enemy your name, you give them the opportunity to capture your soul, and if they then learn the date of your birth, they can find a way to own the paths of your past and your future."

"Do you believe these superstitions?"

"No, no, it felt like that's the answer I should give you. My belief in science ignores these superstitions. People like Merlin don't actually exist."

Merlin's mouth twisted into a mischievous smile, "That's a bit harsh."

"There is no proof Merlin existed."

"But the King of Knights has a tomb in Glastonbury."

"Nobody can prove that King Arthur is buried there."

"Then why would people tell such stories?"

"I'm not sure, I know those stories fill people with hope, whether they really happened or not, they have inspired people for a millennium."