When the company he worked for was declining due to poor performance, Tatsumi was invited by his former teacher, Ayane, to work at an underwear manufacturer. - He used to work as her hands and feet, and even now he does what she says... - Ayane plays with him regardless of whether he is on duty and enjoys the thrill and excitement of Tatsumi. - Tatsumi is bewildered by Ayanes guidance, which is becoming more radical with each passing day, but she cant hide his joy and continues to enjoy the pleasure.