My Parents, The Undercover Billionaires - Dramabox

The wealthiest couple in the world, Dylan Earl and Helen Gray, finally reunite with their long-lost son, Ryan Earl. To test his character, they choose to disguise themselves as humble laborers when meeting him. To their surprise, Ryan not only accepts their background but also introduces his girlfriend, Alicia Finn, to them. However, the Finn family looks down upon Dylan and Helen, prompting Ryan to call off the engagement to protect his parents.