Sister's Pact, Contract of Love — Episode 18

To save their orphanage, sisters Nora and Vivian Collins sign a contract to become professional daughters-in-law for the Johnson family. Nora, a tough martial arts expert, is chosen to tame the playboy heir Colton. Meanwhile, Vivian must heal the reclusive Graham. It's strictly business: change the brothers, get paid. But when the mission ends and the sisters prepare to leave, Colton and Graham realize they've fallen in love with their wives.