

Lena Hart, a top student in the law school, was forcibly sent to the underground club SIN by her creditors to settle her father's debt to loan sharks. On her very first night on stage, she was publicly auctioned off like a commodity and, teetering on the edge of humiliation and violence, was about to be taken away by a sleazy tycoon. Just as she was on the verge of a complete breakdown, Valentina De Luca, the queen of the underground underworld, suddenly appeared. She forcibly interrupted the transaction in front of everyone, took Lena away, and declared her to be her property. Lena was taken to Valentina's private penthouse, where she was presented with a slave-like contract stipulating that "the term of service shall be determined unilaterally by Party A." She refused to sign and left, but her creditors immediately sent her a video showing her parents being held hostage. With no way out, Lena was forced to return and sign the contract, thereby becoming Valentina's personal property. Attending her first underground dinner party as "Valentina's woman," she faced malicious testing from Valentina's nominal husband, Rocco, and jealous surveillance from Mia. In the darkness of a stuck elevator, the two shared their first aggressive kiss. Later, Lena tried to secretly contact her family but was caught by Valentina, who revoked all her privileges, placing her under complete house arrest. Meanwhile, a mysterious force threatened Lena via video to steal evidence of Valentina's crimes. Lena's attempt failed, and their relationship was completely shattered.

After serving Queen Victoria for sixty years, legendary medieval court lady Seraphina dies peacefully, only to awaken as an eighteen-year-old maid in the modern-day Alder dynasty. There she finds Victoria, the family's bullied true heiress, who looks exactly like her former queen. As Victoria's scheming stepmother and stepsister plot to steal the family empire and destroy her, Seraphina's old loyalty blazes back to life. Armed with courtly wisdom, magic, and ruthless resolve, she vows to crush their schemes, restore Victoria's inheritance, and crown her queen of the Alder conglomerate.

Layla Moore, formerly the second-in-command at Seradel Palace, moved to Redville with her daughter, Clara Moore. Six months ago, Clara married Harry Chase, who has subjected her to abuse and violence. Not only is Harry a poor husband, but he also conspires with a bandit named Michael Kane for personal gain. As word of their schemes spreads, Layla returns to Seradel, reclaiming her throne as queen to save her daughter and thwart Michael's conspiracy once and for all.

Underworld queenpin Rosetta Romano dies saving a fallen girl—only to wake up in her body. She’s now Teresa Rossi, the abused true heiress replaced by a fake sister and hated by her own family. Craving a quiet life, Rosetta takes Teresa’s identity to chase a college dream, viciously avenging the girl who deserved better.

Framed, disfigured, and stripped of her memories, Dragon Queen Etheline hides in a fishing village, raising her daughter Prisca alone. When Prisca enters the school and catches the royal family’s eyes, the buried secrets surface, awakens Etheline's lost memory and bloodline. Finally, the whole family reunites in an unexpected way.

Yvette, a human kindergarten teacher, is unexpectedly transported to the mermaid realm, where she transforms into a lowly "Grey-Scale" mermaid and awakens a special system that allows her to hear the inner thoughts of the young Princess Ariel. Armed with this ability, she uncovers a plot involving tainted food, exposes a treacherous steward, and repeatedly saves the persecuted princess, rising from a menial servant to become the princess's dedicated caretaker. King Kaelen, a stern and aloof ruler, shifts from initial skepticism to admiration for Yvette's intelligence and courage, eventually falling in love with her. Meanwhile, the ambitious Noble Consort Undine and her sister orchestrate a series of malicious schemes—disrupting the palace through a royal selection process and even summoning a projection from the Abyss in a bid to overthrow the monarchy. Faced with the chance to return to the human world, Yvette chooses to stay; she stands side-by-side with Kaelen to confront the Abyssal threat and thwart the villains' plots. After weathering numerous storms, she shatters the prejudice against Grey-Scale merfolk, wins the approval of the Queen Mother, and becomes the Mermaid Queen, finding both love and a true home in this alien world.

The female lead, Eva Joseph, is the third wife of the chairman of Global Finance. Her daughter was abandoned by Mr. L at a young age and went missing after becoming entangled in internal power struggles at Global Finance. From that point on, she resolved to bide her time and bring down Global Finance. After Mr. L’s death, Eva Joseph succeeded him as chairman of Global Finance and became a target for assassination. Along the way, she was rescued by Ethan, a mercenary who had returned to his homeland seeking revenge, and she kept him by her side as her personal bodyguard.

Chloe is the CEO of the Corton Group but suffers from somatic symptoms. She relies on alcohol, drugs and even crazy sex to relieve her stress. Fate brought her into contact with the boxer Luke. Chloe originally intended to buy Luke at a high price as a sexual partner, but unexpectedly, Luke gradually cured Chloe and she regained her position as the business queen.

After Queen Helena of the Yaojin Dragon Clan gave birth to her daughter Lyra, she was viciously framed with poison by her stepsister, Mirei. King Consort Garick, coveting the throne, falsified the dragon mark verification results to falsely accuse Lyra of being a 'Zero Mark Calamity,' claiming she should be executed. Helena fought desperately to protect her daughter; she burned out her Dragon Core, entrusted Lyra to Raven, the leader of the Twilight Dragon Clan, and exhausted herself to the point of death. Afterward, Garick and Mirei usurped the throne and publicly declared Helena and Lyra dead. Twenty-two years later, Lyra had grown into an extraordinarily strong warrior. Though she appeared to have zero marks on the surface, she actually possessed a record-breaking 'Ten Marks'—the highest level of power. Learning that Garick was about to take the royal seal at the Great Ancestor Dragon Festival, she returned to the capital with evidence. At the festival, Lyra defeated her enemies and publicly exposed Garick and Mirei's conspiracy from years ago, reuniting with her mother Helena, who had been living in hiding as a disguised alchemist. Lyra then revealed her awe-inspiring Ten-Marked Dragon Form, causing the Ancestor Dragon's royal seal to recognize her as its master, crowning her queen. Cornered and desperate, Garick allied with the Ancient Abyss Dragon, returning as a demonic dragon. Lyra ultimately severed his evil intent and dark power, saving the people of the Seven Cities and restoring the glory and peace of the Yaojin Dragon Clan.

The rickshaw puller, Dylan Hanks, got an intel system by chance. With the intelhe seized a chance to save Jerico Lee, the head of the Cherico Gang, and then he started working for Jerico. After that, Dylan exposed the truth of the death of Tina Foster's daughter and won the Great Fortune Casino. However, Tina found out that Jerico was involved in her daughter's death, so she threatened Dylan to kill Jerico. On the other hand, Jerico took Dylan's parents to San Feria, which made Dylan no longer dare to trust him anymore. Could Dylan get out of all the trouble? How was he going to protect his parents and himself?