A man and a woman have cohabited in Tokyo old apartment.They have lived together for a few years, but spent a separate time in their room. She always need water, and her only place is in it. He want to go away from water, but don't have place to go. They seem have no problems in impalpable balanced relationship, but she feel unconsciously the vague loneliness. Once, they had spent the same time at the faraway place from 'a shore' . But, they were flowed by the stream before they know, and lost sight of each other. While spending calm but empty time aimlessly,they have reached a shore -the border of their relationship slowly.