Once an outgoing leader, he became a shut-in after his parents divorced. His former childhood friend and mutual crush Aya moved to Tokyo, blossomed into a stylish glamour model and seemed to leave him far behind. When she returns home in midsummer, she insists he has not become a loser and offers to rebuild his confidence. She uses all the dirty techniques she learned in the city to pleasure and drain him, turning his miserable summer into the best vacation of his life.