Mao Hamasaki makes her shocking debut in this intense gulping release! Mao, a cunning schoolgirl who manipulated older men, is caught by an organization and taken captive. With her body restrained, she's forced to perform flawless gulps as the condition for her release. Enduring repeated acts of rape, she gradually masters the art of swallowing semen, transforming into a lustful sex slave. This film captures her torment and pleasure, depicting Mao's dramatic transformation.