A project celebrating the 4th anniversary of Mari Rika debut! Mari Rika, the self-proclaimed queen of dirty talk, competes in an ad-lib whispered dirty talk battle against the four dirty talk kings Claire Hasumi, Aoi Shino, and Yuu Kawakami!! The entire battle is recorded in binaural sound! Sweet words inviting creampies rain down from both your right and left ears, putting you in a trance-like state!! Don't miss the serious dirty talk battle that tries to break Mari Rika's nose as she gets into the groove!! In the special recording, five people whisper ad-lib dirty talk to each other while creampieing, and you'll be covered in dirty talk from all directions, giving you endless shivers!