Ken'ichi Kodaka majored in psychology in college. He uses the “results” of his research to destroy those around him. He was kicked out of the university and became a criminal.

He decided to hide out in the dormitory of a shipping company in a countryside town. He wants to quit the shipping company immediately, but what holds him back is the cost of living and his dark desire for Yukie Yoshizumi, the managing director of the company.

He has a hidden research “achievement”: a hypnotic device that allows him to play with Yukie's body as he pleases. When they are alone, the protagonist uses the device on Yukie.

This is how the days of hypnosis and pleasure begin. But the end result is something no one could have predicted.

[From official site]