Kazuma can’t stop masturbating with his mother Kana’s panties. His perverted mother Kana gets excited by this and further stimulates his masturbation by soaking her panties in her scent. Unable to stop herself from masturbating either, Kana craves more perverse activities. One day, she secretly applies for a DAS!! project where participants have to ejaculate 10 times before being released from a locked room, without Kazuma knowing.
