Million-hit series 'Undercover Investigator' all 23 titles included!! Beautiful undercover investigators infiltrate evil organizations for justice but get caught and endure endless pleasure torture... Top popular actresses like Uehara Ai, Sakura Kizuna, Namiki Haruka, AIKA, and others experience unwanted pleasure torture leading to a loss of reason. This is the history of 'Undercover Investigator'.
