Since I don't know the 'yana girl story', I can only guess. It could be about Yana's dream pursuit. For example, she might be a young girl with big dreams in a small town, and the story could be about how she overcomes obstacles like lack of resources, opposition from some people in the town, and her own self - doubts to finally achieve her dreams. It could also be a love story where Yana falls in love with someone unexpected and how they deal with various situations together.
Again, without knowing the actual 'yana girl story', I can't say for sure. But generally, main elements in a story could be the character of Yana herself, the setting where the story takes place, and the plot events that happen to her.
The fanfic might revolve around a day in their lives. Ice Bear could be showing Yana his secret hiding places in the city, like a rooftop garden he found. They could share stories and learn more about each other's pasts, with Yana being amazed by Ice Bear's survival skills.
Layla Hagen is likely an author within the realm of Fantastic Fiction. However, without more context, it's hard to be very specific about her works or her significance in that particular genre. Maybe she has written some amazing fantasy stories that are yet to be widely discovered by the general public.
The 'Layla Secret Story' could be about many things. Maybe it's a story of Layla's hidden talent. For example, she might be secretly an amazing painter but has been keeping it from the world. Or it could be a story about a secret adventure she had, like finding a hidden place in her hometown that no one else knew about. It could also be related to a relationship secret, like she has a long - lost friend that she's never told anyone about.