Son Seung-taek

Jung-yoon was approached by a random stranger named Jun-woo, who told her she'd be dead in six hours. As she follows him for answers, she begins to question whether he's her savior or the one trying to put her in danger.

Once known as the frontman of the rock band Ambulance during his college days, Seung-min now lives a quiet life running a small instrument shop. One day, his legendary first love Bo-na, the girl he never even had the courage to confess to before she suddenly disappeared, unexpectedly reappears in his life. From that moment on, Seung-min's heart begins to race again. But as old feelings resurface, he finds himself trapped in an awkward predicament: a secret he must never let his first love discover… no matter what.