Yousuke Enomoto

A pharmaceutical research scientist. His specialty lies in sexual chemistry, and it is his work in this field which attracts the attention of the International High-Class Callgirl Guild.

Waltraute von Kielmanzuicke

One of the I. H. C. G.'s most elite warrior callgirls, Walt has been sent to Japan to prevent Yousuke from succeeding in his research...

Walt's bratty little sisters, who have traveled to Japan to investigate their elder sister's disappearance.

Walt's elder sister, yet also Walt's inferior within the I. H. C. G. She comes to Japan to bring Grim and Ross passports to replace the ones they "lost."

The Manager

The unnamed male operator of Tea Room Pressen. He has the difficult job of keeping his oversexed staff both productive and satisfied.

Terumi

Waitress at Tea Room Pressen. Her kink specialty: female ejaculation.

A newly hired waitress. Her kink specialty: shemale.

Chief waitress at Pressen. Her kink specialty: lactation.

Chef of Pressen, trained in French cuisine. Her kink specialty: muscles and body hair.