A covert project disguised as a "squirting" theme, where first-time meeting Ichika is made to drink large amounts of water. However, the water secretly contains an aphrodisiac, which has also been mixed into the lubricant. As filming progresses, her sensitivity gradually increases and her breathing grows heavier. Under the full effect of the drug, she becomes completely aroused and can no longer hold back. Her libido awakens, engulfed in intense pleasure, she is driven toward overwhelming, consecutive orgasms.