aespa’s Winter Joins ‘Resident Playbook’ OST With Heartfelt Ballad ‘One of Those Days’ [Official]

aespa member Winter is the latest artist to join the soundtrack of tvN’s weekend drama Resident Playbook (also known as Wise Resident Life), a spin-off of the beloved series Hospital Playlist.

Studio MaumC announced that OST Part 3, titled “One of Those Days”, sung by Winter, will be released on April 19 at 6 PM KST across major streaming platforms.

The emotional ballad speaks to anyone who’s ever felt inexplicably tired, lonely, or overwhelmed. With lyrics like “The wind blows / My tears fall for no reason” and “The passing breeze / Gently wipes away the tears”, the song gradually delivers warmth, hope, and healing.

Winter’s signature clear, emotional tone elevates the track’s mood to another level. According to producer Ma Ju-hee of Studio MaumC, “Winter brought a completely different energy to this song. Her depth and control in delivery made it feel like the track finally found its true owner.”

The song is meant to comfort not only the rookie doctors in the drama, but also the viewers navigating their own hardships. Renowned composer HEN, known for hits from Be Melodramatic, Mr. Sunshine, and My Liberation Notes, took the lead on lyrics, composition, and arrangement—ensuring top-tier production quality.

Resident Playbook follows a group of first-year residents as they stumble, grow, and gradually find their place in the world of medicine. The lighthearted-yet-heartfelt storytelling has earned it a warm reception from viewers.

Winter’s “One of Those Days” will be officially released on April 19 at 6 PM KST.

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