VEC-441 It was supposed to be a one-time affair...Ai Mukai had a betrayal with her husband's subordinate who she shouldn't have embraced.

Ai ends up cheating on her lightly because it was just once. However, later on, when she saw the faces of the subordinates her husband had brought with her, she turned pale. The man she met on a dating app, Yamashita, was her husband's subordinate. She smiles and welcomes Yamashita, pretending to be meeting him for the first time, but inside she is nervous, wondering when her husband will find out about their relationship. Yamashita notices Ai's anxiety and shuts up about the affair.