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Watch My Devil Sister full episodes online for free on FlexTV. Stream all 55 episodes of this short drama series in HD with subtitles. Start watching instantly with no registration required and enjoy smooth, fast playback on any device. Explore popular themes like Female-Centric, Revenge, Contemporary, Romance, and Urban, and binge-watch the complete series anytime.

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My Devil Sister All Episodes

55 Episodes

Episode 1 - My Devil Sister

Born into an ancient witch family, Lovett possesses striking beauty but bears a cruel destiny: each of her boyfriends must undergo a "test of true love" by her older sister, Vine. Those who succumb to temptation become sacrifices, their lifeblood drained by Vine to fuel the family's magic. In reality, Lovett was never a protected heiress, but merely a tool used to attract men and maintain the family's power. For years, she has lost love time and again, forced to work in a bar, using her beauty to lure men into death traps. Until this time, she meets Elliot. She believes she has finally found her destined true love and resolves to pledge her life to him. However, Elliot is merely an ordinary man infatuated with her appearance, lacking genuine faith in marriage and fidelity. He is quickly seduced by Vine in the backyard pool, falling into lust and betrayal. Meanwhile, Lovett unexpectedly saves the critically injured and unconscious young man Charlie. This young heir, aloof and arrogant in public, is passionate and devoted to her. While recovering and investigating his enemies, he gradually enters Lovett's world. As Vine continues to provoke Elliot and he gradually succumbs to temptation, the truth behind the so-called "test of true love" is revealed: it's nothing more than a deception by the witch family to perpetuate their power. Ultimately, Elliot becomes a sacrifice, drained of his life by Vine; the one who never wavered and was willing to give up everything for Lovett was Charlie. In the end, Charlie relinquishes his werewolf blood for love, and Lovett, as his magic fades, returns to a normal life. The two finally break free from the shackles of their families, becoming ordinary people, and spend the rest of their lives together.

Episode 2 - My Devil Sister

Charlie wakes up in a luxurious, ancient bedroom in extreme panic and finds an ancient book with mysterious symbols under his pillow. As he tries to escape the room, Lovett enters with breakfast. Lovett tells him that they were brought to her father's estate after a car accident and are currently very safe. Although Lovett gently comforts and hugs him, Charlie hears a strange singing in the silent estate. Meanwhile, Vine, lurking in the shadows, reveals a cold gaze, and danger is quietly approaching.

Episode 3 - My Devil Sister

Witch Lovett brings her fiancé Elliot back to her secluded hometown, warning him to stay away from the abandoned courtyard her father forbade him from entering. While preparing coffee for Elliot, Lovett has a vision of the coffee turning to blood, sensing that Elliot may not be her destined love (or foreseeing danger). Meanwhile, her sister Vine (an evil witch), lurking in the courtyard, tempts and targets Elliot. Later, indoors, Elliot mistakes Vine for Lovett, and as they become intimate, a knock is heard at the door. Fearing Lovett's father, Elliot hides in a room. Finally, a woman in white (suspected to be Lovett or Vine) brutally stabs a man at the doorway and cries out "Charlie" in terror, revealing a complex web of mistaken identity and a murder plot.

Episode 4 - My Devil Sister

Charlie is ambushed and lies on the brink of death with a dagger in his chest. The heroine, Lovett, guards him in deep sorrow. Sensing Charlie's fading breath, she recalls their innocent vows made in the fields as children. To find the culprit and save her beloved, Lovett uses her witch powers to attempt communication with Charlie's soul. Meanwhile, Charlie's consciousness seems to have fallen into a dark and eerie space, where he experiences extreme fear amidst his confusion.

Episode 5 - My Devil Sister

Lovett rescues Charlie from an alley after his accident and brings him back. Afterward, Lovett confronts her cursed sister, Vine, by the pool. Vine is pleased with the "offering" Lovett brought back and declares she forgives her sister, but Lovett firmly states Charlie is special and warns Vine not to touch him. Vine mocks this as another futile "test of true love," proclaiming all men will eventually belong to her. Charlie wakes from a nightmare, feeling uneasy about the place. The next morning in the kitchen, he encounters Elliot (Mr. Smith), who had previously posed as a lawyer. Both are in extreme shock upon recognizing each other, and conflict is imminent.

Episode 6 - My Devil Sister

This episode sees Lovett introduce her fiancé Elliot to her childhood friend Charlie, only to discover it's an elaborate business scam. Elliot, posing as "Mr. Smith," a lawyer from AT Group, exploits Charlie's trust in Lovett to trick him into signing a contract that could bankrupt him. Charlie's eyes are opened when the real AT Group lawyer calls and his assistant reveals the land has been illegally mortgaged. He realizes in anger that the so-called "fiancé" Elliot is nothing but a lying swindler.

Episode 7 - My Devil Sister

This episode features an intense confrontation between Charlie and Elliot. Charlie is deeply suspicious of Elliot's sudden appearance and injury, and the two clash over Lovett's trust. Under Lovett's mediation, Charlie temporarily leaves. Afterwards, Charlie feigns weakness and apologizes to Lovett, explaining that his loss of control stemmed from jealousy and the fear of losing her. He manipulates Lovett into marrying him before her father's return and confirms the ownership of the marital property, his gentle demeanor hinting at a covetous desire for Lovett's fortune.

Episode 8 - My Devil Sister

This episode showcases the sweet affection between Charlie and Lovett, which is then abruptly shattered by conflict. Charlie is lured into a trap by Lovett's sister, Vine, in the garden. Vine, feigning victimhood and claiming to be "cruelly" imprisoned by Lovett, attempts to trick Charlie into getting closer. When Charlie refuses to comply and tries to communicate rationally, Vine reveals her wicked nature, subduing him with magical vines and issuing threats. Lovett arrives just in time to rescue Charlie. Still shaken and unaware of the truth, Charlie is solely focused on escaping the dangerous house with Lovett.

Episode 9 - My Devil Sister

This episode sees Lovett confiding a long-held family secret to Charlie on a secluded forest path. Lovett reveals her family were once witches, but their magic is fading. Her sister, Vine, was born with a peculiar curse—she can only survive in water and must drain the energy of men to convert it into magic. Lovett warns Charlie to leave this dangerous place as soon as he recovers, mentioning that she needs her fiancé Elliot's love to break free from her family's chains. The episode concludes with a flashback to Lovett's embarrassing first encounter as a waitress, being harassed and insulted by a rude patron at the bar.

Episode 10 - My Devil Sister

This episode reveals a meticulously planned "damsel in distress" scheme. While Lovett is working at a bar, she is harassed by a drunk patron. Elliot appears just in time to save her and gently comforts her, successfully winning her affection and trust. The plot then takes a twist, exposing Elliot's true intentions – he approached Lovett to inherit her property by "accidentally" killing her after their marriage. Lovett's childhood friend, Charlie, suspects Elliot has ulterior motives and tries to warn Lovett. However, Lovett, blinded by love, refuses to believe Charlie, leading to a heated argument between them.

Episode 11 - My Devil Sister

Born into an ancient witch family, Lovett possesses striking beauty but bears a cruel destiny: each of her boyfriends must undergo a "test of true love" by her older sister, Vine. Those who succumb to temptation become sacrifices, their lifeblood drained by Vine to fuel the family's magic. In reality, Lovett was never a protected heiress, but merely a tool used to attract men and maintain the family's power. For years, she has lost love time and again, forced to work in a bar, using her beauty to lure men into death traps. Until this time, she meets Elliot. She believes she has finally found her destined true love and resolves to pledge her life to him. However, Elliot is merely an ordinary man infatuated with her appearance, lacking genuine faith in marriage and fidelity. He is quickly seduced by Vine in the backyard pool, falling into lust and betrayal. Meanwhile, Lovett unexpectedly saves the critically injured and unconscious young man Charlie. This young heir, aloof and arrogant in public, is passionate and devoted to her. While recovering and investigating his enemies, he gradually enters Lovett's world. As Vine continues to provoke Elliot and he gradually succumbs to temptation, the truth behind the so-called "test of true love" is revealed: it's nothing more than a deception by the witch family to perpetuate their power. Ultimately, Elliot becomes a sacrifice, drained of his life by Vine; the one who never wavered and was willing to give up everything for Lovett was Charlie. In the end, Charlie relinquishes his werewolf blood for love, and Lovett, as his magic fades, returns to a normal life. The two finally break free from the shackles of their families, becoming ordinary people, and spend the rest of their lives together.