In the near future, police organizations—facing a worsening public safety crisis and severe personnel shortages—launch a radical initiative: officers considered beyond saving are rebuilt as cyborgs to fight escalating violent crime. The first successful subject, Model Case No. 001, codenamed "RE-1 (Ray)," delivers one victory after another. Following a series of outstanding results, Ray graduates from the prototype phase and is officially assigned to the elite Cyborg Police Force. But as these Future Cops become increasingly effective, criminals begin developing unconventional countermeasures—ones that take a disturbingly lewd turn...

You can support this work here https://www.dlsite.com/maniax/work/=/product_id/RJ01584679.html .