In an era of constant strife in the ocean, Jack Silverfin leads a group of eccentric but free-minded partners on a journey to find the world's largest secret treasure, the "Heart of Waves." Along the way, they experienced naval battles, treasure hunts, strange islands and layers of institutions. They also confronted powerful forces and outsmarted armies. They repeatedly fell into desperate situations and saved the day. Intertwined with humor and passion, they established a deep friendship during the adventure and grew into real pirates. In the final chapter, they face the ultimate crisis and unite to protect each other and their dreams, setting off the last happy song of the Seven Seas.
