In 1984, in a seaside fishing village, Shen Handong is reborn on the very day his younger sister is being forced to marry the village chief's mentally disabled son. In his previous life, he drowned his sorrows in alcohol and ran away from his responsibilities, ruining his eldest younger sister's life and indirectly causing his wife, Chen Shuqing, to die. This time, he stops the marriage proposal, beats up the village chief's foolish son, and brings all five of his younger sisters home. His eyes, which can scan for living creatures beneath the sea, become his greatest advantage. From beachcombing to fishing offshore and locating schools of fish, he goes from catching two giant green crabs to filling an entire boat with large yellow croaker and hairtail. In just two days, he earns hundreds of yuan. He is determined to raise his five younger sisters, send them to school, renovate their old house, and gradually buy a boat to fish offshore. This time, he will fulfill his duty as an elder brother and a husband.