Poor college student Eloin becomes pregnant with twins after a one-night stand with business tycoon Aiden. He desperately seeks help in the rain, initially seen as blackmail by Aiden, but prenatal tests and paternity tests confirm their paternity. Aiden proposes marriage for the sake of the children, publicly breaking off his engagement with aristocrat Jasper. Eloin's life has been tragic, exploited by his adoptive family since childhood. Their cohabitation is fraught with conflict: his wealthy mother-in-law tries to force him to leave, Jasper and Aiden's ex-lover Lior conspire against him, and he faces bullying and rumors at school. However, Aiden softens his exterior and slowly falls for Eloin, who also sees the gentleness hidden beneath his strong exterior. Later, Eloin discovers his true parentage, learning he was switched at birth and his biological parents have been searching for him for nineteen years. A group of villains retaliate with arson, kidnapping, and smear campaigns, but Aiden repeatedly protects Eloin despite the danger. The couple overcame numerous trials, including prenuptial agreements causing misunderstandings, separation after the birth of their child, and internal family conflicts. They resolved all misunderstandings, joined forces to eliminate the family's evil forces, and brought all the villains to justice. Eloun did not rely on the wealthy family; instead, she persevered in completing her studies and winning a major research award.
