KPOP 3rd generation · KI Entertainment / WM Entertainment catalog
ONF
オンエンオフ / 온앤오프
ONF write complicated melodies inside slightly science-fictional worlds, and they are one of the most reliable live acts of their generation.
- 2017DebutAug 2, 2017
- 6Members
- 3thGeneration
- FUSEFandom
Last updated:
01
In 30 seconds: ONF
Complete, We Must Love and Why build the early run, and Beautiful Beautiful in 2021 is the song that changed how many people were listening.
Choose this if you want writing that takes a few listens and a group that never sounds thin on stage.
02
Key facts
- Group name
- ONF
- Reading / Hangul
- オンエンオフ / 온앤오프
- Company
- KI Entertainment / WM Entertainment catalog
- Debut date
- August 2, 2017
- Days active
- 3,377 days (9 years, 2 months)
- Debut song
- ON/OFF
- Generation
- 3rd generation
- Fandom name
- FUSE
03
Member guide
Profile comparison
| Members | Birth date | Blood type | MBTI | Nationality | ||
|---|---|---|---|---|---|---|
| ヒョジン | 1994-04-22 | 32 | 172cm | O | Not disclosed | South Korea |
| イーション | 1994-12-24 | 31 | 173cm | B | Not disclosed | South Korea |
| ジェイアス | 1995-01-13 | 31 | 174cm | AB | Not disclosed | South Korea |
| ワイアット | 1995-01-23 | 31 | 175cm | O | Not disclosed | South Korea |
| エムケイ | 1995-11-16 | 30 | 178cm | AB | Not disclosed | South Korea |
| ユー | 1999-03-16 | 27 | 170cm | AB | Not disclosed | Japan |
Ages are as of 2026-10-31.
Selected releases
04
Start here
Follow a few songs from the starting point to the group's current sound.
Beautiful Beautiful MVBeautiful Beautiful is the turning point, generous and easy to love on first hearing.
We Must Love MVWe Must Love is the early signature and the best of the science-fiction material.
Bye My Monster MVBye My Monster is the recent one and shows how much the writing has tightened.MVView in JapaneseDance PracticeView in JapanesePerformanceView in JapaneseLiveView in JapaneseStageView in Japanese
View all official videos →05
From debut to now
- 2017The debut came from WM Entertainment, presenting bright pop and a two-sidedness written into the name itself.
- 2018You Complete Me turned the brightness and the stretching melody that mark ONF into a signature song.
- 2019Aching feeling, science-fiction storytelling and complex melody became the axes on which ONF were judged.
- 2021The momentum and live feel after Road to Kingdom were turned into releases with ONF: MY NAME and City of ONF.
- 2022Even during military service a special album holding Your Song kept the tie with FUSE alive.
- 2023A bright song marked the return of all six to activity, a year for confirming the bond in the group again.
- 2024Beautiful Shadow left a recent signature song with the aching and the drama pushed further.
- 2025The Stranger and Put It Back updated where the 2nd album series and the 9th mini album stand.
- 2026After the move to KI Entertainment, ONF:MY SELF has been announced for release as 2nd album Part.2.
06
Achievements
Key milestones
Music show wins
Records
3 recordsMost recent broadcast first
Program / edition
| Music Bank | The Stranger | KBS | |
| Show Champion | The Stranger | MBC PLUS | |
| The Show | SBS Medianet |
Each record is checked against its source. These are within the collected period, not lifetime totals.
Verified information
Verified English information is not yet available for this section.
10
Official links
Official site
Official social accounts and platforms
Shopping guide
Verified English shopping links are not yet available.
12
KPOP DISCOVER's ONF note
ONF debuted from WM Entertainment on August 2, 2017 as a six-piece. The name is short for ON and OFF, carving a two-sidedness of front and back, light and dark, straight into it. From the debut song ON/OFF through You Complete Me and We Must Love, a way of writing that layers stretching melody over slightly science-fiction storytelling settled as the natural voice of ONF.
If you want three or four songs that work as ways in, the order We Must Love, Beautiful Beautiful, Bye My Monster and The Stranger is safe. We Must Love is the signature track where science fiction and aching feeling melt together naturally, and its name comes up again and again in any short account of how ONF sound. Beautiful Beautiful arrived in 2021, a piece where forward-facing energy and the balance of every voice line up, and it still stands for the group. Bye My Monster and The Stranger open the period of restart after discharge and the 2nd album series, and they confirm that the writing holds to consistency rather than change.
Nearly all of them entered military service around the same time, and the six returning together on Love Effect in 2023 cannot be left out of any account of where ONF stand. Beautiful Shadow deepened the aching and the drama, and in 2025 came The Stranger from ONF:MY IDENTITY and Put It Back from UNBROKEN. After the move to KI Entertainment, ONF:MY SELF has been announced as well, so the discography is still mid-course. Beautiful Beautiful, then We Must Love, then The Stranger covers the forward-facing signature song, the science fiction and aching feeling, and where they stand after the restart.
Editors' take Beautiful Beautiful / We Must Love / The Stranger — brightness, storytelling and a restart across three songs, from a KI Entertainment six-piece.
Trivia worth knowing
Name
ONF signals the two sides of ON and OFF, which suits both the bright songs and the heavily narrative ones.
Fandom
FUSE carries the sense of sending power to ONF, a name that matched the unity felt during the military service period.
Starter song
Beautiful Beautiful brings singing, brightness and a live feel together, which makes it well suited as a first listen.
Worldbuilding
We Must Love, Why and Bye My Monster are the key songs for the slightly strange, wistful storytelling of ONF.
Military service
The members entered military service at close to the same time, and the resolve to keep the gap short is a major point in the group's history.
Where they stand now
The Stranger, Put It Back and the planned ONF:MY SELF join up the line of releases since the restart.
13
Japan activity score
KPOP DISCOVER original metric
No. 111/ 241 groups
No. 111 of 241 groups with recorded activity in Japan (top 46%)
- 2Japanese releases
- 6Japan-related tracks
- 1Members from Japan
- 0Official Japanese accounts
The denominator is the 241 groups, out of 564 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 2026-10-29).
How this score is calculated →View in JapaneseFrequently asked questions
What defines ONF?
Complete, We Must Love and Why build the early run, and Beautiful Beautiful in 2021 is the song that changed how many people were listening.
Why should a new listener start with ONF?
Choose this if you want writing that takes a few listens and a group that never sounds thin on stage.
Which songs should a new listener try first?
Start with Beautiful Beautiful, We Must Love, Bye My Monster, then continue to the official video index.