Yokohama, 1963. Umi is a high school student living in her family's hillside home overlooking the sea. Every morning she hoists two signal flags towards the bay, sending out a message. A poem about the flags is published in the school newspaper. Could the author be Shun, the daring newspaper editor who has drawn Umi's attention?<br>
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While the two teenagers join in the campaign to save their school's old clubhouse, their budding relationship takes an unexpected turn when they discover a secret surrounding their past. In a Japan at the crossroads of tradition and modernization, Umi and Shun share a moving story of friendship, love and hope.<br>
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(Source: New Video Group)