Joohyun is a dedicated college student grappling with the heavy burden of her father's debt. In her quest to make ends meet, she finds solace in a part-time job as a babysitter for Seungwan's daughter. Seungwan, a single mother striving to balance her career and motherhood, entrusts Joohyun with the care of her precious daughter. Little do they know that their lives are about to be intertwined in ways they never imagined.

  Where Wendy is too giving. Irene is too late. Dahyun is content. Sana is in euphoria.    The only thing we never get enough of is love, and the only thing we never give enough of is love. – Henry Miller  

It wasn't supposed to be a very agreeable day for Wendy, but her best friend Seulgi just had to do God's work and force her out of her misery.