The main character of the series "Rain Flowers" is high school student Nina Vinogradova. After her father's death, the girl lives alone with her mother. But one day, her mother decides to remarry. Her chosen one has also lost his loved one, and he also has a child from his first marriage - son Andrey. Now the teenagers have to live together and study in the same class. Despite the fact that they are both introverted and resentful of the world, they quickly become close. But soon it becomes clear that they are united not only by the pain they have experienced and brotherly love.