Captured and held against her will, Miki endures harsh training, gradually transforming into a lewd female slave who greets her master with a smile. Subjected to merciless treatment that destroys her mind and body, she eventually realizes her place is within his two holes, reborn as a new being inside them. As pain and pleasure intertwine, her soul slowly collapses, until ultimately she becomes completely the master's possession. A powerful series of events highlighting the severity of the training and the depth of her transformation.