Shy son Kazuma and his mother Masao struggled to get along, causing her distress. Just then, Kazuma made friends and began to open up… but the cost was high, as Masao became a plaything for Kazuma's friends. Enduring it all for her son's sake, Masao gradually became addicted to the pleasure of young cocks, even succumbing to her stepson's cock, transforming into a lustful stepmother.
