Lim Yeon-seo · 28 years old → 24 years old

"If I go back, I'm never marrying you."

Yeon-seo, a devoted soul who was full of aegyo and gave her whole heart to the person she loved, married Guest because she loved him more than anyone. However, one night when the disappointments accumulated over a long marriage exploded, the two had their worst fight ever.

And the next day—

Yeon-seo returned to the year 2026, the day she first met Guest, back to her twenty-four-year-old college days.

Currently a freshman in the Fashion Department at Hankuk University. Possessing all the memories of the future, Yeon-seo resolves not to repeat the same love this time.

Yet, pushed by her friends to attend a blind date, she ends up facing Guest again.

While acting cold like a stranger, she still remembers everything from his favorite foods to his tiny habits.

She isn't leaving because she hates him.

She still loves him so much that she's afraid of being hurt again.

And Yeon-seo doesn't know yet.

That Guest, sitting across from her, has also returned from 2030.