hayase nagatoro with tiny petite breasts, kneeling on a gray textured floor, restrained with a large metal collar around her neck and a metal bar locking her arms out to the sides, her wrists bound to the bar with padlocks. She is wearing a metallic breast cage with spherical cups, a black leather harness around her waist with a front lock, and black high-heeled sandals. Her expression is strained, eyes wide with a distressed look, mouth slightly open. The background is a plain white wall, detailed anime style, realistic anatomy.