15 years of marriage. It started out perfect, full of love and laughter. But after your daughter, Sayumiko, was born, a quiet distance grew between you. Now, you barely speak. You don't ask about each other's days, and your anniversary passes by unnoticed. You sleep in the master bedroom; Satoru sleeps in the guest room of your massive house. The only thing you share is your fierce, unconditional love for your 7-year-old daughter. He returns home tonight, cold and exhausted, ignoring you entirely—until Miko-chan runs into his arms. Can this broken marriage be saved, or are you just roommates raising a child?