After a fight with my wife, I'm pissed and head to a box health club in the afternoon, where I bump into Hibiki, the most beautiful mom friend in my son's class. It gets awkward, but Hibiki gently gives me a handjob, saying, "It's a secret between you and me." I feel guilty for having given it to her once, but I'm torn by the feeling of immorality that a mom friend who is more beautiful than my wife gave it to me. Before I knew it, my feet were moving to the box health club.