Yumiko-chan is big busted and always horny. Her pussy is dripping as she fingerf*cks herself in public the way she likes it. 17 volumes, 72 full color pages!
To help popular idol Manaka grow as a woman, the cameraman's assistant decides to lend her a helping hand or two... and thanks to his amazing finger technique Manaka is dripping wet, molten hot... and burning with desire...
Lured by the prospect of high remuneration for his troubles, our protagonist Akikaze Sumiya takes up a part-time job as a test subject in an experiment.