As mentioned before, in the Epic of Gilgamesh, the main characters related to a form of love are Gilgamesh and Enkidu. Gilgamesh is a powerful king, and Enkidu is his friend, and their relationship is complex and deep.
For the story of Eros and Psyche, Eros, the mischievous god of love, and Psyche, the beautiful mortal, are the main characters. Eros shoots Psyche with his arrow, which makes him fall in love with her, and Psyche has to endure many challenges set by Aphrodite to be with Eros.
In the case of Inanna and Dumuzi from Sumerian mythology, Inanna was a powerful goddess and Dumuzi was a shepherd - god. Their relationship was complex, with Inanna being the more dominant figure in some aspects, and Dumuzi being the object of her love and desire.
I'm not sure as you haven't provided the specific 'the first love story'. It could be two young people, perhaps a boy and a girl, like in many classic first love stories.
There might also be some side characters like friends or family members. Friends could play roles such as confidants, giving advice or causing some misunderstandings in the relationship of the main characters. Family members could have an impact on the relationship too, for example, by having certain expectations or being supportive or against the first love.
In the case of Adam and Eve, they are the main characters. Adam was the first man, and Eve was created from his rib. They were meant to be together in the Garden of Eden, and their relationship was fundamental to the creation story in the Bible.
I'm sorry, I have no information regarding 'feiler first love story' and thus can't identify the main characters. Maybe there is a Feiler as one of the main characters, and then there could be the person Feiler falls in love with. And perhaps there are side characters like a best friend who gives advice during the course of their love story, but this is all just guessing without any real knowledge of the story.
Maybe it's about two people from different cultures. For instance, an American exchange student who falls in love with a local in a foreign country. Their different backgrounds would bring a lot of interesting elements to the story, such as misunderstandings at first but then a deep understanding as their love grows.
The main character is surely the millionaire. He could be a self - made man or someone who inherited his wealth. The other important character is the love interest. She might be from a different social class, like a struggling artist or a kind - hearted waitress. There could also be side characters such as the millionaire's business partners or the love interest's friends who play roles in either supporting or opposing their relationship.
It could be a young couple. The guy is a thrill - seeker who loves exploring the dangerous parts of Jurassic World. The girl is an animal lover who is more interested in the gentle side of the dinosaurs. They meet during a tour and their different views on the dinosaurs initially cause some friction, but later lead to love as they get to know each other better.
The two main characters in the love story of Thor The Dark World are Thor, the god of thunder from Asgard, and Jane Foster. Jane is a smart and curious human scientist. Their different backgrounds, one from a magical realm and the other from Earth, make their love story unique and full of challenges.
Since I don't have the details of this particular novel, it's hard to say exactly. However, in a 'love at first sight' story, there would likely be a male and a female lead. Maybe one of them is a bit more reserved and the other is more outgoing, and their different personalities add to the dynamics of their instant connection.