For seven days in the deep sea, Su Wanyue's father died in an accident while harvesting pearls, yet foreman Zheng Biao barged into the mourning hall to force her into handing over half the shares of Huaihai Pearl Industry. At this critical juncture, Su Wanyue activated the Daughter of the Ocean system, gaining the ability to breathe underwater and detect mother-of-pearl, teaming up with loyal pearl diver Jiang Che to deliver consecutive orders and find supreme giant pearls. Zheng Biao colluded with Fang Yu and Gu Yanchuan of Shengshuan to step forward and assist, joined further by Pearl King Zhai Zhenzhu blocking distribution channels. To tear open the blockade, Su Wanyue resolutely registered for the national pearl competition.