Kanako welcomes her husband, Tatsuo, home one day, but for some reason, he can’t see her. With his wife out of sight, Tatsuo looks at his phone with a smile, sharing seemingly flirty texts with a different woman. What’s more, that woman is Kanako’s sister and biggest rival, Maria! The betrayal cuts deeper than any before. Can Kanako untangle her heart from this ultimate love conflict?