The scene depicts an interior view of a classroom within an educational institution in Shenyang City, China

The scene depicts an interior view of a classroom within an educational institution in Shenyang City, China. A female instructor with long dark hair, wearing a white lab coat over a blue shirt, stands behind a light-colored wooden desk at the front right. She is looking down at a purple smartphone held in her hands, her mouth slightly open. On the green chalkboard behind her, handwritten notes detailing blood typing information, including 'Ag', 'Ab', 'A', 'B', 'AB', 'O', 'anti-B', 'anti-A', 'A+B', 'X', 'Both', and 'RBC' are visible. A black microphone is clipped to the wall above the chalkboard. To the left, a projector screen displays a bright gradient image transitioning from yellow-green to light blue, with a darker rectangular inset showing a hand holding a marker. Above the screen, a projector unit with '三星显示' (Samsung Display) branding is mounted. In the foreground and midground, the backs of several students are visible, seated in blue chairs. A purple backpack with silver zippers rests in the immediate foreground, and another student wears a brown head covering. A white power outlet is visible on the white wall behind the students.