Investigator 'Amaumi Tsubasa' goes undercover in a notorious brothel on the street! Pin salon, outcall host, onahole class, swapping party and live coverage of the scene! A real battle with a layman who loves brothels and is full of semen! Trouble and accidents happen, but that's Amaumi Tsubasa for you! She uses her wit, erotic techniques, and vagina to handle it all smoothly! 'So this is what the underside of Japan looks like, huh~(laughs)'
