BTOB’s Lim Hyunsik has been selected as the artist for the OST of the secret romance-thriller 'When The Phone Rings', starring Yoo Yeon Seok and Chae Soo Bin.

The track 'See The Light,' performed by Lim Hyunsik, captures an intense longing and desire for deeper connection, perfectly complementing the cold and dreamy atmosphere of the drama. The song heightens the tension of the storyline.

Featuring a delicate piano performance and intricate guitar sounds, the track builds with rich instrumentation as it progresses, amplifying the emotional depth of the vocals. Lim Hyunsik's smooth yet powerful voice adds a captivating layer to the song.

'See The Light' is prominently featured in the climactic endings of episodes 1 and 2, portraying the precarious relationship of Baek Sa Eon (played by Yoo Yeon Seok) and Hong Hee Joo (played by Chae Soo Bin), leaving a strong impression on viewers.

Meanwhile, When The Phone Rings, which begins with a menacing phone call and follows the secretive, high-stakes romance of a couple three years into an arranged marriage, airs every Friday and Saturday at 9:50 PM KST.

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