When Moko Sakura wakes up, she finds herself locked in an unfamiliar room and forced to wear a maid outfit. In her hazy memories, a man named Ichijo appears and pins her down. As she struggles to recall how she ended up in this situation, fragments return—she was a female college student living alone with her younger brother, Yugo. Yugo had borrowed money from a loan shark and couldn't keep up with the mounting interest. As a result, he offered Moko as collateral, leading to her abduction. She is then trained as a creampie-only maid. As Moko reflects on her past, she gradually uncovers the true reason behind this ordeal. Her helplessness in the face of sudden, cruel circumstances deepens the story.