Summer's Promise: Who Are You to Me?

Fifteen years ago, Mia Rowe saved Sam Bale's life by donating her blood, promising they would marry when they grew up. However, to everyone's surprise, Sam fled abroad on their wedding day. Despite being married for five years, they have never met. Throughout these years, Mia's concern for Sam's childhood illness drove her to become the youngest internal medicine specialist. Meanwhile, Sam achieved success abroad, ranking among the world's top three tycoons. Upon his return, he immediately seeks Mia for a divorce. Unbeknownst to him, the woman he meets and develops feelings for in the hospital lobby is actually his wife, Mia. Simultaneously, Mia remains unaware of his true identity...