Resident Playbook Pt. 1

Resident Playbook, Pt. 1 (Original Soundtrack) is an OST single by Lee Know, Seungmin and I. N of Stray Kids. It was released on April 12, 2025 under Studio Mind C and Eggs Coming, with “START!” serving as the single's title track.

1. 1.[언젠가는 슬기로울 전공의생활 (Resident Playbook) OST Part 1] 리노, 승민, 아이엔 (Stray Kids) - START! MV
2. 2.START! (Instrumental)