Sorry Not Sorry

At her workplace, Song Yi lived a life of constantly saying "I'm sorry" every day. And, she dreams of a happy life in an apartment in the new city of Cheonpo with her multi-talented and widely admired boyfriend-turned-fiancé, Ju Hwan, until she witnesses her soon-to-be husband cheating in their new home. Due to a pre-marriage registration for a housing loan, Song Yi becomes a divorced woman before even having a wedding. On top of that, she unexpectedly starts taking care of her nephew, Jay, on behalf of her sibling and is mistakenly thought to be the mother of a 5-year-old boy from New York by her neighbors. In reality, Song Yi is struggling to make ends meet, juggling various part-time jobs like working at a café, doing food delivery, and assisting with school pick-ups and drop-offs to pay off the mortgage. Despite living a peculiar life as a "disguised wife" and "Jay's mom" Song Yi is determined to find new love. Will she survive the endless troubles in Cheonpo and find love again?