Youngseo (ALLDAY PROJECT) 'DARKROOM (나의 유죄인간 OST Part.1) (My Guilty Human OST Part.1)' Comeback & Release Date

Released Official · The Black Label · checked Oct 24, 2026

Release date	Oct 20, 2026 (Tue) 18:00 KST
Artist	Youngseo (ALLDAY PROJECT) (영서)Photo: 티비텐 TV10 / CC BY 3.0 (Wikimedia Commons)
Album / song	DARKROOM (나의 유죄인간 OST Part.1) (My Guilty Human OST Part.1)
Type	OST
Agency	The Black Label
Information level	Official announcement (agency press release or official notice)

ALLDAY PROJECT member Youngseo's first solo OST since debut, featured in the tvN Monday-Tuesday drama '나의 유죄인간' (lit. "My Guilty Human").

View announcement source October 2026 releases & schedules

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Information as of Oct 24, 2026, confirmed through official announcements. Schedules can change, so please check official notices from the agency or ticketing site.