GFriend promoted the album with a series of televised live performances on South Korea's music shows.

[6] GFriend was designed to target a teenage audience, and the music video is set in various school locations, including a classroom and gym.

[13][14] "Glass Bead" is bubblegum pop dance song, with a "magnificent string sound, powerful beat, and emotional and flowing melody".

Jeff Benjamin said that GFriend, along with fellow rookie girl group Lovelyz, was "leading a new wave of female acts with a classic innocent look", in contrast to the popular "sexy" trend of 2014.

He said the "sweet sound" and "non-stop" choreography of "Glass Bead" brought "undeniable nostalgia" for Girl's Generation's debut single, "Into the New World".

[2] Writing for Fuse, he said GFriend was "arguably the most successful" innocent girl group and called "Glass Bead" a "nostalgic gem".

He concluded that the group needed to create a unique identity for themselves, or "risk being nothing but a [Girl's Generation] tribute act".