Ivan Kostrov

Family: The family consists of Katya Kostrova (his twin sister), Viktor Kostrov (father) and Elbrus (dog)

Characteristics: In the series, Ivan is portrayed as a romantic and extreme sports enthusiast. He is a mountain climber, is responsible with rescue equipment, knows how to provide first aid, is a good swimmer, and drives a car.

Main character traits
Romanticism and a love of extreme sports. Ivan is passionate about mountaineering and dreams of conquering all the world's eight-thousanders. He's willing to take risks to save people, but sometimes he doesn't foresee all the potential problems, which often leads to disagreements with his father.

Childishness and a tendency to trust feelings. He relies more on emotions than cold calculation and is not always selective in his hobbies or new projects. He is shy in his relationships with women. Ivan tends to idealize women and is easily influenced by them. In the story, for example, he tries to win the attention of the popular blogger Lika.
A playful rivalry with his sister Katya. Misunderstandings often arise between the twins: Ivan becomes indignant when Katya takes on the role of "older one." However, in difficult situations, they are able to unite.