In the debut episode, Hyunjin reads "The Background Colour Grows Ever Beautiful", written by Kim Hak-jung.

Kim Lip reads "The Song Did Not Echo" written by Im Gyung-seob.

Haseul reads "Now We" written by Park Joon.

Heejin reads "The Wind Blows, Someone Calls My Name" written by Heo Eun-sil.

ViVi reads "Orange", written by Kim Sang-mi.

Yeojin reads "Adolescence", written by Park Sang-soo.