The waters off Sadamisaki Peninsula, at the westernmost tip of Shikoku, are rich with large abalone and sea urchins. Amashi, or freediving fishers, descend 20 meters or more to harvest them. The tradition dates back hundreds of years, but today only about 30 amashi remain. A young man left his job as a civil servant to enter this community. At first, he faced a series of hurdles, but is being gradually drawn into this fascinating world. Will the amashi come to accept him as one of their own?