Rachel could be a great character to pair with the boy next door. She's ambitious and talented, and their relationship could be full of musical duels and passionate arguments about art. They could both push each other to be better singers and performers.
I'm not sure specifically as I haven't read it in detail. But generally, it might be a story about the relationship between Lola and the boy next door, perhaps a coming - of - age story with elements of friendship, first love, and self - discovery.
It's hard to say for sure. Manhwa often have twist and turns. The boy next door could be a vampire if the story takes a supernatural turn and reveals it later on.
It's not impossible. Manga creators often come up with unique and surprising twists, so the boy next door could totally be a vampire. It could add an exciting element to the story.
One 'boy next door story' could be about a boy next door who is always helping the elderly in the neighborhood. He mows their lawns, takes out their trash, and runs errands for them.
The 'boy next door story' could be many things. It might be a simple story about a boy who lives next door. Maybe it involves his daily life, like going to school, playing with friends in the neighborhood, or having some small adventures in the local area.