"If a clock could count down to the moment you meet your soul mate, would you want to know?"

Everyone on Earth has a countdown on the wrist, counting down from the day they are born. They count down to three of the main important events- birth, birth of a child, and when you meet your soulmate. Some are born with the knowledge of what each of their countdowns are for, but some aren't- they remain clueless until the clock hits zero.

Youngjae is one of the people that know what each of his four clocks countdown to- what they tick for. So, when he notices that the clock designated for his soulmate is in its final minute, he doesn't know what to do, what to think, what to feel. But, despite his indecision, the countdown relentlessly forces time forward.

Are you ready?

10...9...8...7...6...5...4.....3.......2..........1.............0.