Mother Nene dotes on her only son Dai, raising him to be spoiled and deeply attached—developing a full-blown mother complex. His jealous classmates, resentful of Dai's privileged life, begin bullying him. One day, Masaru meets Dai's mother Nene and is instantly aroused by her big tits, his cock throbbing at the sight. Using underhanded tactics, Masaru lies to Nene, claiming Dai has been bullying a classmate named Yuta, shocking her. Fearing negative consequences at school and in the media, Nene chooses to believe him to protect her son. Masaru takes advantage—groping her large breasts, seducing her with sweet talk, and ultimately forcing her into sex. The brats' prank spirals out of control as they turn Nene into their plaything, her big tits and pussy mercilessly used by their cocks. Covered in creampie after creampie, she eventually finds herself entangled with her own son's cock as well.