Amidst the vast ocean, there exists a promise that has never faded with time. Song Yu, a man who always appears calm, yet hides raging waves within his heart. Lin Xian, a young man with eyes as clear as the sea, yet filled with unspoken sorrows.They met, pulling each other into days drenched in sunlight, ocean waves, and nameless emotions. But is their love truly as peaceful as the blue waters? Or will the undercurrents of the past and reality sweep everything away?A promise, a love, a story engraved in the depths of the sea. In the end, can they reach the shore of happiness together?