Upcoming tvN drama “About Time” has dropped another teaser video, hinting at the relationship to play out between Lee Sung Kyung and Lee Sang Yoon.

“About Time” is a fantasy romance about a woman named Choi Michaela (Lee Sung Kyung), who can see a countdown to people’s life expectancies including her own, and a man named Lee Do Ha (Lee Sang Yoon), who is the only person able to stop the countdown.

The new teaser starts with Lee Sung Kyung and Lee Sang Yoon both sitting as they read. However, Lee Sung Kyung is trying to use her book to sneakily look at Lee Sang Yoon, rather than read it. Lee Sang Yoon can’t help but notice Lee Sung Kyung’s gaze, so he stops reading and directly asks her, “Why do you keep staring at me?”

Lee Sung Kyung looks flustered for a moment before she smiles and responds, “I like you.” She cutely adds, “I’m going to watch you without hiding now.”

Lee Sang Yoon ignores her confession and goes back to reading. However, the video shows Lee Sang Yoon give a small smile behind his newspaper as he says in the voice over, “Sweet stalking has started.”

“About Time” will premiere on Monday, May 21 at 9:30 p.m. KST.

Check out the new teaser video below!