Han Soo-Hee.

Pretty, yet a humble and bright kind-of-girl who's still studying at a university in major of acting. She's from a wealthy family. Her father is a richman, and his brother, Jong-Hee is a musician at a small bar. Her mother died when she was in High School. But Seung-In, her ex-boyfriend hurt her for cheated on someone else and made a scar to her heart. Until she met Lee Tae-Hyun.

Lee Tae-Hyun.

A rookie singer that rocked over countries and melts his fans to pieces. He's funny, got sense of humor, kind, and a very handsome guy. He was betrayed by Hye-Jeong so that he didn't believe in true love. After that betrayal, his world turns dark and never was the same. His work began upside down, and rumors were spread everywhere. And then, Soo-Hee came to his life, her soft and true side made a spark to Tae-Hyun's brokenheart.

Choi Seung-In.

Soo-Hee's ex boyfriend. A billionaire who gets whatever he wants. From a wealthy family like Soo-Hee, but he could be arrogant and selfish sometimes. His father cooperate with Soo-Hee's father so they're pretty close to each family. Seung-In cheated and left Soo-Hee but after he knows she's close to Tae-Hyun, something inside of him flare up for getting Soo-Hee.

Park Hye-Jeong. 

A top supermodel in Korea and turned up to be Tae-Hyun's ex girlfriend. She and Tae-Hyun were old friends, they're like brothers and sisters to each other. Until Tae-Hyun's heart break in pieces when Hye-Jeong lied and made a scandal. She never thought of her ex could meet someone even more special than her. She felt defeated by Soo-Hee and made Soo-Hee's her rival for getting Tae-Hyun back.