what episode is heart rate challenge love island

Yeon-Woo, the heir of the organization Sipgangpa, disguises herself as a boy to infiltrate an all-boys school and eliminate the heir of the rival organization Makgangpa. However, as she catches the attention of a handsome trio, romance begins to blossom in her used-to-be noir life. One of the three is apparently the heir of Makgangpa—will Yeon-Woo be able to complete her mission without falling in love?

Frank Church gave up his status as a wealthy heir to marry Lynn Cooper. On their daughter Tianna's birthday, the little girl waited alone by the road for her parents. Meanwhile, Lynn was out with her first love Harry Zimmer and his daughter Yana. While driving together, they accidentally hit Tianna,leaving her critically injured. Lynn chose to take Yana—who had only minor injuries—to the hospital first, delaying Tianna's treatment and ultimately leading to her death. Despite Frank's repeated pleas, Lynn refused to visit their daughter, insisting that Tianna was fine. Devastated and betrayed, Frank finally turned his heart away forever.

Twenty years ago, Quilla saved Yosef and his family by chance.The two fell in love over time, and she chose to stay with Yosef, raising his three children as her own. Twenty years later,the ex-wife Mary reappears. Emotionally, the three children lean more toward their birth mother, so the family decides to drive away Quilla, the only "outsider".Heartbroken, she cuts ties with them for good.Meanwhile, the Grant family's business begins to decline,and Mary proves to be nothing but a gold-digger.They finally remember Quilla's kindness and try to win her back, but her heart is already dead, and she starts a new life.

Yulia is sent by her father to the bed of her family's creditor, Yvan. What appears to be an orchestrated honey trap is, in fact, a calculated move by Yvan, a young CEO. Playing along with the scheme, Yvan pressures Yulia's father behind the scenes while playing the innocent victim in front of the clueless girl. His endgame? To trick her straight into marriage.

Jane Arnold was imprisoned on her wedding day after being falsely accused of killing Francis Wooten's sister Jennifer Wooten. Jane gave birth to her daughter Bunny in prison. Years later, Bunny reunites with Francis but faces harassment and schemes from Francis' admirer, Sonia Thompson. By chance, Bunny meets her mother Jane Arnold, who now goes by Jean Smith. Mother and daughter work tirelessly to uncover the truth and clear their names, discovering that Sonia was the real killer. However, Sonia kidnaps Bunny. To save her daughter, Jane must agree to Sonia's unreasonable demands, but Sonia secretly plans to kill them both. Fortunately, Francis arrives in time to save the mother and daughter.

Stella Hart, once a wealthy heiress, is lost and taken in by her foster mother, Serena Cook, who arranges a betrothal between her and her son, Jason Vale. After Jason suffers an accident, Stella sells herself to a childless couple to save him. However, once the couple adopts her, they later have twins and decide to abandon her. Stella’s grandmother, unable to bear her suffering, takes her in and cares for her with great love, leading a life of mutual dependence. Meanwhile, Jason and his mother work tirelessly to find Stella, and eventually, Jason becomes the president of a publicly listed company. On the other hand, Stella faces a series of misfortunes, including betrayal and mistreatment by a man she thought she loved. When Jason finally finds Stella, the person he has cherished since childhood, he vows to make up for all her suffering. As their story unfolds, Stella’s true identity gradually reveals itself, and they eventually reunite, with true love prevailing in the end.

Heart surgeon Mervin Charles dies suddenly and is reborn as a 7-year-old homeless boy who then names himself Merlin Charles. He's rescued at a shopping mall by his former colleague Camille Reynolds,and he discovers her phone wallpaper is actually his photo. News reports reveal that Mervin has become a vegetative patient. To get closer to his original body, Merlin lies about being an orphan and gets adopted by Camille. Through various medical incidents together,both their perspectives gradually change. Mervin finally understands that being a doctor isn't about self-salvation, but about healing and saving others. In the end, he not only returns to his original body but also successfully wins Camille's heart.

Monica’s first love was the high school quarterback, Sebastian, who grew up to be a star football player while Monica is now just a cleaner. Sebastian resents Monica for aborting their baby seven years ago, but little does he know that Monica has always been deeply in love with him - until their secret child Ian calls him Dad!

After the death of Sophie, the daughter of the Winter family, one of the wealthiest families in town, her husband Chad, along with his first love, international superstar Brianna, and their child, take her body to the Winter family to demand a fortune. Reborn, Sophie vows to strike back with everything she has. Since you've chosen your 'perfect woman,' I wish you a lifetime of happiness—may you stay together forever!

Twenty years ago, Quilla saved Yosef and his family by chance.The two fell in love over time, and she chose to stay with Yosef, raising his three children as her own. Twenty years later,the ex-wife Mary reappears. Emotionally, the three children lean more toward their birth mother, so the family decides to drive away Quilla, the only "outsider". Heartbroken, she cuts ties with them for good. Meanwhile, the Grant family's business begins to decline,and Mary proves to be nothing but a gold-digger. They finally remember Quilla's kindness and try to win her back, but her heart is already dead, and she starts a new life.

The Harper heiress, Jacqueline, once believed love was worth losing everything. When betrayal and violence shatter that faith, she walks away and comes home. What follows is not rage, but precision—a ruthless reckoning that restores her power, aided by three powerful, devastatingly handsome knights.

For ten years, Gracie Turner has endured humiliation in the Zimmer family, pretending to be mute and weak, yet still ignored by her mother, who favors her well-connected stepsister. If power is what matters,then she'll take it for herself. Everyone says Mr. Ingram is cold and untouchable, yet he falls for a girl ten years younger than him.

Sold out by someone in dark web, Nina Morgan bumps into mafia lord, Max Luther in the riches’ hunting game. Once an aristocracy, Nina is now dragged into inferno by Max, lost in sweetness and tortures. She finally makes up her mind to leave, but Max confines her no matter how many times she tries. It’s out of love, or of hatred? Overwhelmed by love and forbidden desire, the two hurt each other but simultaneously save each other.

Elena endures seven years of a loveless marriage with Nicholas, who remains obsessed with his first love, Olivia. After their daughter Lily is hurt time and again, Elena draws up an agreement giving Nicholas three final chances. He wastes every last one, forcing Elena to walk away—only for Nicholas to finally realize his true feelings, much too late.

Rihanna injures Gael, CEO of Doyle Group, and mistakenly believes she has caused him to lose his ability to have children. Out of responsibility, she chooses to marry him. But Gael has secretly loved her for many years. He decides to conceal his "medical condition," seizing the opportunity to be close to her, and begins a sweet love story with Rihanna where marriage comes before love.

Mandy's son and daughter-in-law, eager to make money from a bride price, pressured and threatened her—a widow for many years—into marrying Seth, a man in a vegetative state due to a car accident. With no way to refuse, Mandy went through with the marriage, feeling scared and reluctant. However, she was surprised to be warmly welcomed and treated kindly by Seth's daughter, Kira. At first, Mandy resisted the idea of staying, but over time, she grew more willing to remain by Seth's side. What she didn't realize was that Seth was slowly regaining awareness, deeply touched by her presence and care...

Amy Dole finds herself in the operating theatre, pressured by her boyfriend to undergo an abortion. Promising a fresh start afterwards, he leaves her feeling cornered. In a desperate moment, Amy flees towards the window and leaps out, only to unexpectedly encounter her child's biological father. And that marks the start of a romantic tale brimming with love and animosity.

For ten years, Gracie Turner has endured humiliation in the Zimmer family, pretending to be mute and weak, yet still ignored by her mother, who favors her well-connected stepsister. If power is what matters,then she'll take it for herself. Everyone says Mr. Ingram is cold and untouchable, yet he falls for a girl ten years younger than him.