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Ichiko and Otoya are happily married, despite not having sex for the last two years. The secret to their happiness is Otoya's affair with Mitsuki, which Ichiko approves. Everything is going well until Otoya rejects Ichiko's advances on the night of their seventh anniversary. In shock, Ichiko seeks advice from her friend who suggests she exercise her right to have a boyfriend of her own.
Sachi is an introverted little girl. Her mother dies unexpectedly and although she doesn’t shed a tear, her pain is nonetheless deep and keen. Helpless, Sachi’s father dons his starched shirt and perfect tie and tries his best pick up his work-a-day routine once more. Sachi’s only comfort is a necklace with a ring that belonged to her mother. This keepsake helps Sachi to believe that her mother is always near, protecting her. Bereft, lonely and consumed by grief, her father descends at home into a kind of dementia. And so Sachi will have to manage by herself somehow.
