Three months after marrying, Haruka was living happily with her husband Taduo and his kind son, Keita, enjoying what felt like a perfect family life. One day, she receives a mysterious phone call from her former lover, Miyaguchi, which marks the beginning of relentless harassment that pushes her to the brink both mentally and physically. Unable to bear it alone, she endures in silence until Keita discovers the truth. With resolve, Haruka decides to confess everything—unaware of how this revelation will change their lives forever.