Her son was troubled by being unable to retract his foreskin, and his mother Kaede, who secretly harbored feelings for him, finds out. Kind and caring, Kaede worries about her son and offers to help by performing a procedure to manually retract his foreskin. When she touches his cock with her warm hands, he can't withstand the pleasure and cums repeatedly. Finally, after much effort, his foreskin is retracted—but in the process, overcome with lust, the son suddenly attacks his mother. "Just peeling it back isn't enough for me!" he shouts, redirecting the desire he once held for adult women toward his mother, and Kaede, too, loses all sense of reason.