The story begins with a pair of young lovers, the busty Mizuho-chan, and the well endowed Hiro-kun.He even offers to coach her after hours at the pool where he works since she can’t swim very well. Mizuho’s new workout plan

Meanwhile Takuya-kun finds himself in a compromising situation with his clumsy but beautiful neighbor Sayaka-chan…

Each episode features couples enjoying various sexual escapades involving plenty of water, wet bodies, & extremely revealing mizugi (swimsuits).