In TREASURE's debut album 《THE FIRST STEP: CHAPTER ONE》, two songs were featured: "BOY" and "COME TO ME." Among the group members, Choi Hyun Suk, Yoshi, and Haruto actively participated in the songwriting process for both tracks.

• "BOY": The lyrics were written by Choi Hyun Suk, Haruto, along with other collaborators like Se.A and Choice37.
• "COME TO ME": Choi Hyun Suk, Yoshi, and Haruto contributed to the lyrics alongside other composers such as Rovin and BIGTONE.

If you'd like to dive deeper into their debut or explore more about TREASURE, you can check out the detailed tracklist and credits on various K-pop platforms.