4th generation · MYSTIC STORY
ビリー / 빌리
Billlie pair a dense narrative concept with pop that stays bright on the surface, a combination MYSTIC STORY has stuck with since 2021.
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Seven members work across Korea, Japan and international releases, with videos, practice cuts and performance films published steadily.
Choose this if you want storytelling without the music turning heavy to carry it.
ムン・スア문수아 · Moon SuaView in Japanese
スヒョン수현 · SuhyeonView in Japanese
ハラム하람 · HaramView in Japanese
ツキ츠키 · TsukiView in Japanese
ション션 · SheonView in Japanese
シユン시윤 · SiyoonView in Japanese
ハルナ하루나 · HarunaView in Japanese| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| ムン・スア | Not disclosed | Not disclosed | South Korea | |||
| スヒョン | Not disclosed | Not disclosed | South Korea | |||
| ハラム | Not disclosed | Not disclosed | South Korea | |||
| ツキ | Not disclosed | Not disclosed | Japan | |||
| ション | Not disclosed | Not disclosed | South Korea | |||
| シユン | Not disclosed | Not disclosed | South Korea | |||
| ハルナ | Not disclosed | Not disclosed | Japan |
Ages are as of 2026-09-17.
Follow a few songs from the starting point to the group's current sound.
RING X RING MVRING X RING is the debut and the first look at how the concept is built.
GingaMingaYo MVGingaMingaYo is the single that reached past the existing audience.
EUNOIA MVEUNOIA shows the recent sound and how the staging has been rethought.4 awards · 2 No. 1 finishes (compiled by KPOP DISCOVER, as of September 17, 2026)
Seoul Music Awards SMA
Korea First Brand Awards KFBA
SBS M The Show The Show
Asia Artist Awards AAA
Source: announcements by each award ceremony and official chart
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What anchors Billlie is an enigmatic storytelling held together with bright pop and a rock-leaning sound. MYSTIC STORY debuted the 7-member girl group on November 10, 2021 with RING X RING, and Moon Sua, Suhyeon, Haram, Tsuki, Sheon, Siyoon and Haruna bring acting in the face, vocals, rap and a Japanese member as ways in.
The way in is RING X RING, GingaMingaYo, EUNOIA. The enigmatic storytelling of GingaMingaYo, the first music show win with EUNOIA, the bright pop and strange world of BYOB and DANG!: this is a group carrying long-form lore.
Through the Japan 1st Mini Knock-on Effect and the unit SNAP, the full album the collective soul and unconscious: chapter two and its ZAP updated where the long-form lore and the performing stand in 2026. RING X RING, then GingaMingaYo, then EUNOIA covers the debut, the storytelling and the signature song.
Editors' take RING X RING / GingaMingaYo / EUNOIA — enigmatic storytelling held together with bright pop, across 3 songs from a MYSTIC STORY 7-piece.
No. 77 of 210 groups with recorded activity in Japan (top 37%)
The denominator is the 210 groups, out of 525 covered by KPOP DISCOVER, whose raw score reaches at least one point. The score adds 10 points per Japanese-market release, 3 per Japan-related track, 12 per member from Japan, and 8 per official Japanese account. Japanese-market releases carry the most weight because they are the most direct evidence of activity; related tracks add track-level detail; members from Japan stand for Japanese-language communication and continuity; official accounts stand for a permanent point of contact. The weights are an editorial judgement, not a statistical optimisation, and the ranking tracks release volume in Japan closely. Source: releases, tracks, members, and official links recorded by KPOP DISCOVER (updated 2026-09-17).
How this score is calculated →View in Japanese
KPOP