Taku, a bank employee, has a habit of self-harming. He has been trying to improve his stagnant business performance as much as possible, all while hurting his own wrists.

One day, he was enduring a client's sexual harassment when he was saved by Kosame, a painter. While Kosame was treating Taku's injured wrists, he suggested that Taku use a more pleasurable method of hurting himself instead.

Not understanding why he didn't reject Kosame's hands then, he unwittingly came to learn about the pleasure of being dominated into humiliating positions.

"Feel free to come again."

Taku thought that he would never see Kosame again but when he becomes overwhelmed by stress he couldn't help but think of Kosame...