Inside the carriage of a train, passengers are seated, some facing forward while others face sideways. The lighting is a mixture of natural light streaming in through the windows and artificial light from the ceiling fixtures. The carriage ceiling is arched, with a series of rectangular light panels running its length. Overhead luggage racks are visible, holding bags and backpacks. The seats are blue, and there's an exit door at one end of the carriage, labeled with the word "выход." The number "04" is prominently displayed above the exit.