Hidden Heir, Billionaire Daddy

Ordinary Isolde rescues Griffin, the hidden CEO of Kane Group, on a stormy night. To pay for her mother's surgery and satisfy his grandmother's marriage condition for inheritance, they sign a one-year marriage contract immediately. Griffin repeatedly protects her from cousin Dominic and ex-girlfriend Vivian, and the arrangement becomes love. After becoming pregnant, Isolde overhears a fragment of a business conversation and believes Griffin wants the baby removed. She leaves and raises son Leo alone. Three years later Griffin finds them, explains the misunderstanding, reveals his identity, and exposes the conspirators. In an airport rainstorm he proposes without a contract, asking to reunite the family.