In a coastal fishing village in the 1990s, old fisherman Liang Zhenhai had biased views in the past and failed to treat his children equally. When he once encountered danger, fell off a cliff, and was on the verge of death, Ao Yi, a dragon girl whom he had saved fifteen years ago, appeared to repay the kindness. She presented him with the Tide-born Seal, endowed him with the abilities of ocean pupils and current control, and used a spiritual pearl to heal his injured leg. Having survived the disaster, Liang Zhenhai woke up to reality, returned home to attentively protect his daughter and granddaughter, and learned to treat his family well. Relying on his supernatural abilities to catch tides for a living and start a business steadily, he attentively made up for past regrets. Under his management, the family business grew increasingly prosperous, the family members supported each other and lived in harmony, and those harboring evil intentions also received the punishment they deserved.