Jun, a stern mistress, takes her pony through a rigorous training session. She cracks her whip, the sound echoing through the dungeon, as the sub's body responds with a shiver. Jun's boots click on the stone floor as she circles her pony, inspecting him like a prized horse. She mounts him, her heels digging into his sides, and he responds with a eager buck, ready to serve his mistress in any way she desires.