Singer and actress Suzy participated in the OST of 'Transit Love 4' and released a new song titled 'One Day.' Released at 6 p.m. on the 29th through various music platforms, 'One Day' is a poignant ballad that calmly depicts a day passing while remembering a love that has left.

Suzy actively communicated with fans by posting on her SNS, "I sang 'One Day' for the Transit Love 4 OST. Please listen a lot and love Hwan-yeonppo a lot (By the way, it's cold ..?)," along with a video and photos promoting the new song. In the released photos, Suzy appears in warm winter fashion for the shoot, with a calm yet sincere expression that catches the eye.

This OST participation is regarded as an important element that enhances the immersion of 'Transit Love 4.' Suzy's emotionally rich voice conveys the emotions in the drama more deeply, raising fans' expectations even higher. In response, netizens commented, "Suzy's voice is so good," and "Thanks to the OST, the drama feels more emotional."

Meanwhile, Suzy plans to continue her acting activities alongside her OST work, aiming to meet the public with diverse appearances.