Fair-skinned beauty Mio Futaba says her sex life with her husband has gone stale. Frustrated and unsatisfied, she visits a training club for married women seeking what their husbands cannot provide. Handcuffed and driven into repeated orgasms with a powerful vibrator, she still eagerly serves the man with a handjob and slow, wet blowjob. Finally, she takes him bare and cums again and again before he finishes with a creampie.