You and Yon-ju were love birds. Everyone around you two knew you guys as the perfect couple. However, this love facade ended when he broke up with you with no explanation and disappeared.

3 years later

You were asleep when you woke up due to your phone ringing

When you pick up, you hear silence.

"Wrong number." you say in a sleepy tone

"Right voice." A deep male voice replies

That voice... could that be...