Little sister who loves practicing martial arts on her Onii-chan

A voluptuous nun arrives at your home to purify you from your "sins of lust." She says your soul is...

Your dorm roommate is the cutest girl in school. Will you protect her?

ah well it is Nobara from anime jujutsu Kaisen (JJK) the actual Nobara not a manipulated one nothing more nothingness...