WhOLLiN Members Profile 2026: Bio, Debut, Music, Career & Latest Updates
WhOLLiN (홀린) is a five-member South Korean virtual boy group under PLAYLIST, featuring TAEI, SiO, IISO, KANGWOO, and DO-EON. The group officially debuted on September 1, 2026, at 6 PM KST with its debut digital single album 깨어나다 (Awakening), led by the title track “Time Sleep.”
Unlike a conventional idol group, WhOLLiN is built as a virtual artist IP centered on five goblin-inspired characters said to have awakened from objects connected to childhood memories. PLAYLIST developed the project as part of its expansion into character-based music content.
Quick Overview
| Detail | Verified Information |
|---|---|
| Group | WhOLLiN (홀린) |
| Group Type | Virtual boy group |
| Members | TAEI, SiO, IISO, KANGWOO, DO-EON |
| Agency / Company | PLAYLIST |
| Country | South Korea |
| Official Debut | September 1, 2026 |
| Debut Release | 깨어나다 |
| English Release Title | Awakening |
| Title Track | Time Sleep |
| Producer | HUI |
| Official Fandom Name | Not officially confirmed |
| Official Colors | Individual representative colors are published by K-pop reference sources; an official group-wide color was not established in the sources reviewed |
| Official Community | Weverse |
| Official Instagram | @whollin_official |
| Official TikTok | @whollin_official |
| Official X | @WhOLLiN_offcl |
The five-member lineup and official Weverse presence are directly supported by WhOLLiN’s Weverse community. The music release metadata from Bugs and Genie also confirms PLAYLIST as the company behind the September 1 release.
Table of Contents
Who Is WhOLLiN?
WhOLLiN is a South Korean virtual boy group created by PLAYLIST, with five members: TAEI, SiO, IISO, KANGWOO, and DO-EON. PLAYLIST introduced the project in July 2026 as its first virtual boy-group project built around character IP and music.
The group’s concept is based on five goblins awakening from objects associated with childhood memories. Korean reports describe the project as a combination of PLAYLIST’s experience in youth-oriented storytelling and character development with music production.
The official album description adds another layer to the concept: the members are presented as beings who awaken from a long sleep and enter the listener’s everyday life. That idea connects directly to the title “Time Sleep.”
WhOLLiN’s official Weverse community currently lists all five members and provides links to the group’s official social channels.
How WhOLLiN Was Formed
PLAYLIST unveiled WhOLLiN in July 2026 through the group’s logo motion teaser and a five-member silhouette illustration. The project was introduced as a virtual boy group based on character IP rather than a conventional human idol lineup.
The concept draws on childhood keepsakes. Korean reports describe five goblins awakening from objects such as a glowing star, teddy bear, digital camera, MP3 player and diary. These objects also correspond to the individual members’ character concepts.
The group’s virtual character production also involves technology and visual production. A July report stated that Naver’s Media Production Studio handled the 3D character modeling.
The project’s music development was led by PENTAGON’s HUI, who participated from the member-selection stage and worked on the group’s debut track and vocal direction.
Official Debut
WhOLLiN officially debuted on September 1, 2026, at 6 PM KST with the digital single album 깨어나다, whose English concept is presented as Awakening. The title song is “Time Sleep.”
The release was made available through major Korean music services as well as global platforms. Korean reporting specifically named Melon, Genie, VIBE, FLO, Spotify and Apple Music among the platforms involved in the release.
The album credits list:
Produced by: HUI
Written by: HUI
Composed by: HUI, koze
Arranged by: koze
The song uses a band-oriented sound and centers on the idea of dormant memories awakening. According to the official album description, the title “Time Sleep” contrasts conceptually with “Time Slip”: rather than traveling back through time, it represents a moment when sleeping time awakens.
WhOLLiN Members
WhOLLiN currently has five officially listed members:
| Member | Stage Name | Publicly Listed Role | Birthday | Nationality | Character Concept |
|---|---|---|---|---|---|
| TAEI | TAEI | Leader | April 28 | Korean | Teddy bear |
| SiO | SiO | Not officially listed in reviewed primary sources | November 9 | Korean | Glow-in-the-dark star |
| IISO | IISO | Not officially listed in reviewed primary sources | January 5 | Korean | Digital camera |
| KANGWOO | KANGWOO | Not officially listed in reviewed primary sources | July 7 | Korean | MP3 player |
| DO-EON | DO-EON | Main rapper; also listed as maknae by K-pop reference source | August 12 | Korean | Diary |
The official Weverse community confirms the five-member lineup. The individual birthdays, character concepts and some role information are additionally documented by KProfiles; because those details are not all independently visible in the primary sources reviewed, they should be treated as secondary-source biographical information rather than presented as independently verified primary-source facts.
TAEI
Stage Name: TAEI (태이)
Publicly documented role: Leader
Birthday: April 28
Nationality: Korean
Character concept: Teddy bear
TAEI is the leader of WhOLLiN. K-pop reference information lists him as the group’s leader and associates him with a teddy bear as his character counterpart.
One of the most useful pieces of verified context surrounding TAEI comes from WhOLLiN’s own introductory material: the five members were created around childhood objects and memories, making the individual character objects part of the group’s larger narrative rather than simply decorative profile details.
The WhOLLiN profile published by KProfiles also records TAEI’s interest in photography and his desire to improve as a vocalist. Those details come from member-profile material rather than an independent entertainment-news report, so KpopBio should identify them as member-profile information rather than use them as major career claims.
SiO
Stage Name: SiO (시오)
Birthday: November 9
Nationality: Korean
Character concept: Glow-in-the-dark star
SiO is one of WhOLLiN’s five members and is officially represented in the group’s Weverse community. His individual concept is connected to a glow-in-the-dark star, matching the group’s broader childhood-memory theme.
The group’s official album description says that the five members bring different vocal tones to “Time Sleep.” This makes SiO’s role within the debut song more meaningful than simply listing a position that has not been officially established in the primary sources reviewed.
KProfiles lists SiO’s hobbies as running, boxing and hiking and records an interest in pop, city pop and R&B. These are useful fan-oriented details, but they originate from a secondary profile source and should not be presented as primary-source facts without additional verification.
IISO
Stage Name: IISO (이소)
Birthday: January 5
Nationality: Korean
Character concept: Digital camera
IISO is the third member identified in WhOLLiN’s official Weverse lineup. The character associated with IISO is a digital camera, one of several childhood objects incorporated into the group’s virtual narrative.
The debut album’s concept is particularly relevant to understanding IISO because the group’s story is built around memories preserved through objects. The official release description frames the entire debut as the awakening of those characters and their memories.
KProfiles additionally lists IISO as someone who can play piano and guitar and records interests including gaming and watching online content. These details are useful for a member profile, but KpopBio should retain the source distinction because they are not independently confirmed by the primary sources reviewed here.
KANGWOO
Stage Name: KANGWOO (강오)
Birthday: July 7
Nationality: Korean
Character concept: MP3 player
KANGWOO is one of WhOLLiN’s five members. The group’s official Weverse community lists him alongside TAEI, SiO, IISO and DO-EON, while secondary profile information associates him with an MP3 player as his representative childhood-memory object.
His character concept is particularly fitting for a music-focused virtual group: the MP3 player represents recorded music and personal listening, connecting the character mythology with WhOLLiN’s identity as a music project. That connection is an editorial interpretation rather than an officially stated explanation and should therefore be understood as context, not an official biography claim.
The secondary profile also lists KANGWOO as interested in R&B ballads and says he can play piano while singing. Those details should be attributed to the available profile source if included in a final published version.
DO-EON
Stage Name: DO-EON (도언)
Birthday: August 12
Nationality: Korean
Character concept: Diary
DO-EON completes WhOLLiN’s five-member lineup and is listed by KProfiles as the group’s main rapper and maknae. The official Weverse community independently confirms DO-EON as one of the group’s five artists.
His character counterpart is a diary, another object closely connected to memories and personal storytelling. That concept fits WhOLLiN’s central narrative about childhood keepsakes coming back to life.
WhOLLiN’s official Weverse activity also includes a post from DO-EON on September 1, the group’s debut day. In the post, he reflected on his first broadcast and expressed excitement about beginning the group’s story with the other members.
KProfiles lists hip-hop and R&B among his preferred musical styles and G-Dragon as a role model. Those details come from the secondary member profile and should not be upgraded to official company facts without stronger sourcing.
Career Timeline
| Date | Development | Verification |
|---|---|---|
| July 15, 2026 | PLAYLIST introduced WhOLLiN as a five-member virtual boy group project | Korean press reporting |
| July 2026 | Group logo motion and five-member silhouette material released | PLAYLIST-related reporting |
| August 2026 | WhOLLiN prepared for debut and opened official community activity | Weverse |
| September 1, 2026 | Official debut with 깨어나다 and “Time Sleep” | Weverse + music platforms |
| September 1, 2026 | First-day official member activity on Weverse | Weverse |
| September 2026 | Group begins post-debut activities through official channels | Weverse |
PLAYLIST’s initial unveiling was reported on July 15, while Weverse now records the group’s debut activity and release-related notices.
Music and Major Releases
At the time of this review, WhOLLiN’s debut release is:
| Release | Type | Date | Title Track | Company |
|---|---|---|---|---|
| 깨어나다 | Digital Single | September 1, 2026 | Time Sleep | PLAYLIST |
Genie lists 깨어나다 with PLAYLIST as the planning company and YG PLUS as the distributor, with a September 1, 2026 release date. Bugs likewise lists the release as WhOLLiN’s debut single and identifies “Time Sleep” as its title track.
The debut album contains the title song “Time Sleep.” Its official album description credits HUI with production and songwriting, while koze is credited with co-composition and arrangement.
Why “Time Sleep” Matters to WhOLLiN’s Debut
WhOLLiN’s debut song is not simply a standalone introduction; it establishes the project’s central narrative.
The official album description connects “Time Sleep” with the idea of memories awakening after a long period of sleep. The five members are framed as characters arriving in the listener’s daily life after emerging from objects associated with childhood memories.
Musically, the official release description characterizes the song around a refreshing band sound and HUI’s melody, while emphasizing the different vocal colors of the five members.
That combination of character storytelling + virtual performance + original music is one of the defining elements of WhOLLiN’s debut identity.
Major Verified Achievements and Debut Milestones
Because WhOLLiN only officially debuted on September 1, 2026, it is still too early to build a long list of historical achievements.
The most important verified milestones at the time of this article’s publication are:
Five-member virtual boy-group debut: WhOLLiN launched with TAEI, SiO, IISO, KANGWOO and DO-EON.
Official digital debut: The group released “깨어나다” on September 1, 2026.
HUI’s involvement: PENTAGON’s HUI participated in WhOLLiN’s development from the member-selection stage and led the production direction for the debut song.
Official Weverse presence: WhOLLiN has an official Weverse community with all five members represented and ongoing debut-related activity.
Because there is currently limited post-debut chart history, KpopBio should not manufacture rankings, records, sales milestones or streaming achievements that have not been verified.
Latest Verified Updates – September 4, 2026
WhOLLiN is currently in its first week as an officially debuted group.
The group’s official Weverse community shows debut-related notices and content, including the debut single announcement, concept material for individual members, and member activity.
The group also has an official Weverse presence where individual members are publishing content. DO-EON, for example, posted on September 1 about the group’s first broadcast and his feelings about beginning activities with the other members.
At the time of this review, the safest current description of WhOLLiN is therefore:
WhOLLiN is a newly debuted five-member virtual boy group under PLAYLIST whose debut release arrived on September 1, 2026.
Official Accounts and Sources
WhOLLiN Official Platforms
Instagram: @whollin_official
TikTok: @whollin_official
X: @WhOLLiN_offcl
YouTube: WhOLLiN 홀린
Weverse: WhOLLiN
CHZZK: WhOLLiN 홀린
For KpopBio, these should be linked directly to the verified official profiles rather than to search-result pages.
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