Heidi, 15

About Heidi, 15: Heidi has grown up and is now a teenager. She lives with her grandfather in the mountains, refusing to leave. But when a real estate project threatens a forest in the area, she agrees to move to the city to continue her studies at high school, where she hopes to better fight the project. In the city, she will be confronted with an urban lifestyle she is unfamiliar with and will have to overcome many challenges