Billlie: Discography & Career Overview

Billlie is a seven-member K-pop group — Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon, and Haruna — that debuted under Mystic Story on November 10, 2021. From the outset, the group built their discography around two interconnected thematic series: The Billage of Perception and The Collective Soul and Unconscious. That structural framework, visible in nearly every release title across their catalog, gives Billlie's output an unusually cohesive character for a group still in its early years.

Debut & Early Releases

Billlie launched with the mini-album The Billage of Perception: Chapter One on their debut date, led by "Ring X Ring." Within weeks, the group returned with the single album The Collective Soul and Unconscious: Snowy Night (December 14, 2021), introducing "Snowy Night" and establishing the second of their two running series before the year was out.

The pace continued into early 2022. The Collective Soul And Unconscious: Chapter One arrived on February 23, 2022, with "GingaMingaYo (The Strange World)" as its title track. Shortly after, the group released an original soundtrack album — The Collective Soul and Unconscious: Chapter One Original Soundtrack from "What Is Your B?" — on March 1, 2022, extending the thematic world into a format beyond their standard releases.

Developing the Two Series

The second half of 2022 brought The Billage of Perception: Chapter Two (August 31, 2022), led by "Ring Ma Bell (What a Wonderful World)," followed by The Billage of Perception: Chapter Three on March 28, 2023, with "Eunoia" as the title track. Those two releases effectively closed the numbered arc under the Billage of Perception header.

October 2023 introduced a different kind of entry: Side-B: Memoirs of Echo Unseen, a single album led by "Dang! (Hocus Pocus)." Its positioning outside either main series suggested that Billlie's overarching framework allows room for standalone or supplementary releases without disrupting the broader structure.

Appendix: Of All We Have Lost, a mini-album released on October 16, 2024, and fronted by "Remembrance Candy," reinforced that tendency. The word "appendix" in the title once again framed the release as something adjacent to — rather than a numbered continuation of — the existing series.

Full-Length Arrival

On May 6, 2026, Billlie released The Collective Soul and Unconscious: Chapter Two, a full-length studio album and the first of that format in their catalog. The release also marks the long-awaited continuation of the Collective Soul and Unconscious series, which had previously seen only its opening chapter and the associated OST. As the group's debut full-length, it represents a notable step in scale for Billlie, who have spent roughly four and a half years building a discography through mini-albums, singles, and thematic extensions under Mystic Story.