Two long-separated friends, Iwaizumi and Oikawa, unexpectedly reunite on a beach in Miyagi. Both had pursued their passion for volleyball in different parts of the world, with their competitive spirits distancing them from one another. As they sit by the shore, they reminisce about their shared past and the depth of their bond. Oikawa reveals he's considering returning to Japan from Argentina. The two make a pact to not have regrets and to make the most of their time together if Oikawa returns. As they leave the beach at dawn, they compare their relationship to the constant, sometimes turbulent but ever-present ocean. The story underscores the enduring nature of their bond, suggesting that no matter where life takes them, their paths will always come together.
3 parts