This work is a sound installation that uses plastic debris to consider the interrelationship between people and the ocean, and the history of the ocean. Today, the toxicity of plastic in the marine environment is being debated, and data shows the increase of plastic in the oceans. Although the data accurately represents the facts, it is somewhat cold attitude and we are rarely aware of our personal involvement in the data. Also, the ocean viewed from land is calm and beautiful, and there is a gap between the actual pollution in the ocean and what humans see from land. A critical situation for marine life is occurring in the ocean. We humans cannot live underwater and cannot truly understand the creatures of the sea. The project creates a virtual sea made of bottles to represent the gap between the sea as seen from the land and the sea inside, and emotionally translates the data to appeal to the human senses, looking into the situation and history of the sea through the lens of sound.