The super beautiful and strongest half-Japanese girl, Takai Luna, takes on the climax challenge! If she can hold out, she'll win the dream prize of 1 million yen!! However, the devilish rule is that 10,000 yen will be deducted for each orgasm. They torture her to orgasm with an electric vibrator, have hardcore sex with each other, and the 10,000 yen keeps decreasing. They even use an aphrodisiac to make Luna cum over and over again! She's already a body that easily orgasms, but the massive orgasm after building up tension leads to a mental breakdown!