Weakling Swordswoman’s Ero Profession

Today, once again, swordswoman Seras is getting violated by a bad guy.
She may not be cut out to be an elite swordswoman, but her body is cut out for sex!
One day, she hears rumors of a perverse serial killer in town who rapes his female targets
before doing away with them, and she figures she can use her body to trap him…