Han Sun woo

"Evelyn Roff, a physicist from the nation's early founding, wakes up 70 years later to find her once eight-year-old son now a grumpy old man with two troublesome grandchildren—a clueless CEO manipulated by a scheming beauty and a lazy underachiever. Unable to tolerate such an eyesore, Evelyn, now an 18-year-old great-grandma, steps in for a fate-writing family lesson."

"Park Eun-mi's life is cut short during a secret mission, leaving her young son behind. She awakens eighty years later in the body of an eighteen-year-old at an Inha Group banquet. To her surprise, her son, Lee Jae-yeong, is now the company chairman—but a frail, comatose old man, and his children are unfit to inherit. Determined, Park Eun-mi sets out to reform the family. When Lee Jae-yeong finally awakens, she rushes to him, seizing every chance for their long-awaited reunion"