Married woman lesbian swimming lesson

At her husband's recommendation, Haruki chose to take private swimming lessons with Nana as her instructor. Haruki, who is unable to love her husband, has secret feelings for Nana. Nana was lonely without her husband. Haruki kisses Nana during her lesson. Nana is shaken by the sudden incident, but Haruki's warmth at that moment opens her heart... The two gradually come into contact with each other intensely and deepen their love. And that brought about changes in their families as well...