A mysterious man arrives in a quiet Japanese town. With him, he carries a strange helmet that allows one to re-experience the happiest moment of their life. He goes on to make the village people recall their happy pasts, but his face is lined with worry and a sadness that deepens. What is the secret of this helmet? And what is he trying to do with it?

Happiness

After taking a leave from work due to stress, a husband becomes depressed while sitting idly at home every day. One day he meets a stray cat in the park and takes it home. His life now slowly starts to improve.