A young woman records a mirror selfie video in an indoor gym. She stands centrally, facing a large mirror, holding a smartphone with a dark case to film herself. She is dressed in an all-black athletic ensemble, featuring a long-sleeved top with a large cut-out across the chest, under which a black sports bra is visible. She wears matching high-waisted leggings, a black belt around her waist, and black athletic shoes. Her long, dark hair is down. In the background, two other women are visible exercising on treadmills. The gym floor is made of wood-look material, and the walls feature exposed brick pillars and sections, alongside painted light-colored walls. The ceiling has an industrial design with exposed pipes and bright, linear artificial lighting. Several treadmills and elliptical machines are arranged in the facility. The main subject maintains a neutral expression while recording. No discernible text is visible on clothing, equipment, or signage. The scene takes place in a gym located in Chaikovsky, Russia.