Mai Ushio takes on a long-awaited hard-core orgasm project! In addition to a month of serious abstinence, the shoot develops her undeveloped portio nonstop all day long. She convulses and arches her back in pleasure like she's never experienced before! Even though she's exhausted from the relentless orgasms, her libido is never-ending and she just begs for a big dick. This is the whole story of how Mai Ushio's libido, which had been building up to its max, was fulfilled in just 24 hours.