Marina, a mother of two, continues to support her family while harboring a dark secret—her forbidden relationship with her sons. In the living room where the family of four spends time together, Tsubasa gives her handjob, while in the bedroom, Kenichi demands blowjob. Whether or not the two sons are aware of each other's relationship with their mother, they continue treating Marina as their sexual outlet. Unable to voice her feelings, once again today she must silently spread her legs for her sons and submit to pleasure. Amidst this ongoing cycle, how will Marina come to terms with herself?