

Alex was the son of Poseidon, the God of the Sea, and the recognized King of the entire coastal continent. To protect the woman he loved, he deliberately concealed his royal identity and disguised himself as an ordinary farmer, quietly spending five years of resources helping the down-and-out Amy family rise into the nobility. Amy, however, only had eyes for power and status. She despised the farmer-like Alex from the bottom of her heart. At a noble banquet, together with her mother Monica and her admirer Blake, she publicly humiliated and expelled Alex, tearing up their engagement with her own hands and trampling on the castle deed and the treasured Heart of the Ocean he had given her. On the way, Queen Helena of the Odin Empire was besieged by werewolves. Alex stepped in to save her and gifted her the Sea Hunter's Blade, a weapon capable of suppressing werewolves. Helena fell for him at first sight and offered to marry him with her entire empire as dowry, but Alex politely declined, still devoted to Amy. When a large pack of werewolves attacked the Odin castle, the Sea Blade unleashed its divine power and drove back the wolves. Upon learning that Alex had gone to Amy's banquet, Helena immediately set off for Moore Castle. At the banquet, Amy and her companions continued to belittle and expel Alex, even ordering silver-armored knights to strip him of his royal cloak and the Trident of Poseidon. The instant the knights moved to act, Alex stopped hiding, revealing his kingly regalia, his identity on the verge of being exposed. Helena arrived just in time and publicly declared Alex to be the future sovereign of the Odin Empire. All the nobles present—Amy, Monica, Blake—were plunged into extreme shock and utter collapse.

Calder Maren, heir to the Sea God, disguised himself as a vagabond and married Mara Ashveil. He left her pregnant before going to war. For eight years, she raised their son in humiliation. When the boy is chosen as a sacrifice, Calder returns as the Sea God, unleashing divine wrath to protect his family.

Serlanty, East Sea mermaid princess, was drained of golden scales by her family and lover. The bastard Winsil stole her credit. She traded the Heart of the Ocean for human form, defeated evil with the Land King and found true love.

In her previous life, Serena, the Golden-Tailed Princess of Atlantis, was betrayed and murdered by her adopted sister, Lina, and her fiancé, Kaelen. Reborn with the memories of her past, she sees through their schemes and, to escape her doomed fate, ventures into the Abyss, where she bonds with the ancient Sea God Nereus, who has long been sealed away. Their union leaves her carrying nine divine eggs. At the Birthing Ceremony, Serena exposes the villains' conspiracy and joins forces with Nereus to defeat them. Together, they abolish the merfolk tail-caste system, and Serena ascends as the Sea Queen, ruling the deep sea alongside the Sea God.

Aesher, son of the Sea God, devotes himself to mastering hydrokinesis. Before coming ashore, he journeys to the Gilded Royal City in search of his mother. After rescuing his younger sister, the princess, he enters the palace with her. His royal brother mistakes him for an ordinary man with no divine powers, while even his own mother dares not acknowledge him amid the kingdom’s wartime crisis. When an undead army launches a massive invasion, everyone’s water magic proves useless. Aesher’s spectacular abilities amaze the entire court, yet his brother Ide remains consumed by jealousy. The undead witch secretly manipulates Ide, abducts the queen and other members of the royal family, and lays a deadly trap. At the critical moment, Aesher awakens the power of his sea-god bloodline. Poseidon, his father, crosses countless dangers to reach him. United by the strength of family, they slay the Lich King, pacify the ancient evil spirits, and restore peace to the royal city. In the end, the family is finally reunited.

Transmigrated into a monster-infested Ocean Age, Aimar’s SSS-grade Pandora's Box is mocked as worthless trash. Dumped and expelled, he unlocks the artifact—awakening Poseidon and ten ancient gods. Now, the outcast rules the seas, forcing every enemy to bow at his feet.

The Mary family was framed and destroyed. Consumed by deep-seated hatred, Mary infiltrated the palace, biding her time to take revenge on Kane, the son of her enemy. However, the man who appeared before her was not the true crown prince, but Marcus, a stand-in who looked exactly like Kane. Bearing old wounds, Marcus still retained the gentleness and inner conflict of his youth. While concealing his identity and living in the shadow of the throne, he found himself drawn to Mary's coldness and pain. The two circled each other through schemes, lies, and true love, only to gradually discover that the wrongful case against Mary's family was far more complicated than they had imagined. When Kane returns and court conspiracies tighten layer by layer, Mary must choose between revenge and love, and every step closer brings them nearer to the ruinous fate beneath the thorny crown.

A deadly shipwreck. One glance, and mermaid Serena falls for Marcus, bleeding herself dry to save him. But he chooses her scheming stepsister instead. Heartbroken, Serena becomes the Sea Emperor Julian's bride. When Marcus finally learns the truth, regret drives him into the sea—but Serena has already found her true love.

Bankrupt socialite Aliyah was put up for auction as collateral by her gambler fiancé, inadvertently awakening Caspian, a deep-sea kraken. He strangled the gambler and took Aliyah away as the "pearl" he had been searching for across millennia. This reclusive global tycoon imprisoned her on a luxury yacht, unleashing an obsessive and forceful love. When a hidden mastermind sowed discord between them, Caspian risked his life to protect her. Through life-and-death trials, the two forged a "Life-Sharing Covenant." Aliyah awakened her priestess bloodline and joined forces with Caspian to repel the ancient gods. In the end, their curse was dissolved by true love, and Caspian offered the entire ocean as a betrothal gift, crowning his queen with the "Heart of the Deep Sea."

Eight years ago, Seahorse Queen **Seraphina** was ambushed and nearly assassinated in the northern forest of **Norden Reef**. She was saved by **Finn**, a commoner, and the two shared a brief romance. After Seraphina returned to the palace, Finn discovered that he was carrying Seraphina's child in his brood pouch — yet, because she never came back for him, he was forced to stay with the **Marlow** family. Imprisoned by his stepfather **Alders** and his half-brother **Cedric**, Finn had his newborn son **Corwin** forcibly cut from his brood pouch, and the boy was reduced to a tool for brewing the Marlow family's elixir, "**Coral Tears**." Eight years later, Seraphina tracks her way to **Marlow Manor** — only to walk straight into the "real or fake Finn" scheme Alders has carefully engineered. A counterfeit prince consort, **Marina**, enters the palace with a counterfeit crown prince, **Cola**, while the real Finn and Corwin are locked away in the woodshed. Seraphina and the **Dowager Queen** join forces to expose the fraud: Alders and Cedric are executed, Marina is banished, and Finn and Corwin are finally brought home. Afterwards, **Prince Valen**, consumed by jealousy, schemes against Finn and is stripped of his title and reduced to a commoner. When Finn returns home to visit his father, he suffers humiliation at the hands of his stepmother **Elsa** and the local tyrant **Serena**. Seraphina reveals her true identity, has Serena executed, and at last weds Finn in the royal palace. Corwin is named crown prince, and the story draws to a close with the whole family reunited.