Song Dong is reborn back to 1999. To protect his younger sister from misfortune, he resolutely severs ties with his son-preferring, patriarchal family of origin, receiving only an old house and a dry well, which unexpectedly unlocks a spiritual spring space within the dry well. He uses the spiritual spring to cure his mother's illness, teams up with his childhood sweetheart to go out to sea to catch rare seafood, and steadily accumulates wealth. Facing the continuous extortion and scheming of his native family, he calmly responds to hold his bottom line, purchases an ocean-going fishing boat to lead his partners in exploring the deep sea, guards his family to make up for the regrets of his past life, and relies on his own hard work and struggle to grow into the Deep Sea Fishing King, living out his own life's value.