The "SOD" series "The Work of Female Guards in Juvenile Detention" was first released in 2007. The prisoners in the detention center are mostly hot-blooded teenagers. These adolescents are in their prime, so besides being combative, their sexual desires are also high. To maintain harmony in the detention center, the female guards working there must use their bodies to relieve them. However, only prisoners with excellent performance are allowed to ejaculate each month; those with low scores have to live under managed abstinence. In order to cum inside the female guards, everyone cooperates obediently. However, there are exceptions, such as the incorrigible serious offenders, who are kept in solitary confinement. Although prisoners who don't meet the score standards can't receive relief from the female guards, adhering to humanitarianism, they still prepare thoroughly and regularly go to check on them. Moreover, these serious offenders have even stronger sexual desires than regular prisoners, often getting handsy with the female guards during the relief process, like unauthorizedly removing their clothes and fondling their breasts, and in the end, it takes three people working together to subdue them. The most arousing part of this series is the control of the female guards' expressions. They have to maintain a serious poker face during sex, but with a lewd gaze staring at the prisoners, and while being penetrated, they say things like: "Allowed to ejaculate, cock harder!" The contrast with their image makes me rock hard just watching it. And the most exciting is the ending scene, where Akari Hoshino spreads her legs on a bench, waiting for the lined-up prisoners to prepare for insertion, completely fulfilling many people's fantasies of subordinates violating superiors and crossing class lines.