LIGHTSUM will release its Japanese major debut mini album, Re:idol, on September 23, 2026, alongside its ABEMA documentary buzz.
August/17/2026 18:00Related Groups & Members
The six-member girl group LIGHTSUM, which is currently generating buzz through ABEMA’s original documentary “Re:Idol,” has been decided to release its major debut mini album “Re:idol” on Wednesday, September 23, 2026. LIGHTSUM debuted in June 2021 from Korea’s CUBE ENTERTAINMENT. The program “Re:Idol,” which started on ABEMA on Sunday, August 9, 2026, is a documentary that follows LIGHTSUM as they struggle with a “blank period” during which they were unable to stand on stage for two years and aim to transform into Japanese-style idols. Their real struggles and comeback, as they overcome various walls and are reborn, have drawn a major response in Japan and overseas since the broadcast began. The Japanese original debut work that can be said to be the culmination of LIGHTSUM’s challenge is the mini album “Re:idol.” It is a work that condenses their new appeal as they are reborn into a different appearance, packed with the “kawaii” unique to Japanese-style idols. In addition to four completely newly written songs, this work includes a total of five songs, such as “POSE! (Kawaii ver.),” which cute-ifies a single already released in Korea for this project. It will be released in two formats, a regular edition and a first limited edition, and is a must-listen work filled with LIGHTSUM’s “now,” as they begin to shine anew. In addition, first-come purchase bonuses for those who reserve and purchase eligible products at each shop have also been decided. LIGHTSUM, which has achieved a miraculous fusion of overwhelming performance ability and “kawaii,” presents a new idol image that no one has seen before. The ABEMA original documentary “Re:Idol,” which follows the process of their transformation, is being streamed exclusively and free on ABEMA. And attention is also focused on the major debut mini album “Re:idol,” which condenses the new form they have reached. ・LIGHTSUM challenges a re-debut as a locally adapted idol in Japan with a “kawaii” concept! “Rather than miss the chance, I want to try it once” ・[PHOTO] LIGHTSUM’s Suna appears at the first pitch... beautiful pitching form ■Release information Major debut mini album “Re:idol” Release on September 23, 2026 <Track list> 〇CD *Contents common to both formats 01. Why? 02. Fallin' World 03. Stop and Go 04. POSE! (Kawaii ver.) 05. To You Walking Through the Night 〇DVD Bonus footage ・Recording Camp ・Pajama Party Digital mini album Pre-Add / Pre-Save here CD reservation here <Regular edition> WPCL-13834 2,500 yen (tax included) CD, 12-page lyric booklet, photo card (1 of 6 types, random) (regular edition ver.) <First limited edition> WPZL-32353~4 4,200 yen (tax included) Digipak format CD+DVD 〇DISC-1 CD ・20-page photo book ・Photo card (1 of 6 types, random) (first limited edition ver.) 〇DISC-2 DVD ・Bonus footage “Recording Camp in Japan” included contents: - Recording Camp - Pajama Party <First-come purchase bonuses> ・Warner Music Store: unit photo card (Warner Music Store ver.) (6 types total, 1 random) ・Tower Records: photo card (Tower Records ver.) (6 types total, 1 random) ・HMV: photo card (HMV ver.) (6 types total, 1 random) ・Supporting stores: photo card (supporting store ver.) (6 types total, 1 random) *Eligible stores will be announced later. ・Amazon.co.jp: mega jacket (each jacket image design) ・Rakuten Books: can badge (6 types total, 1 random) ・Seven Net Shopping: acrylic keychain (6 types total, 1 selected) ■Related links LIGHTSUM official Japanese website LIGHTSUM official Japanese X
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ABEMA will exclusively and free livestream the one-night K-POP and J-POP hybrid music festival “SBI MUSIC CIRCUS HOKKAIDO -DAYBREAK -” from Sapporo’s Daiwa House Premist Dome on Sept. 26, 2026. The lineup includes JAEJOONG, ME:I, Kep1er, izna, ELLY/CB, THE JET BOY BANGERZ, LIGHTSUM, cosmosy, H//PE Princess, and VAYONN, with opening acts Kaya and Resonance and MCs kamion and de_hana.
LIGHTSUM left for Japan through Incheon International Airport on the morning of the 25th for scheduled activities. On the 23rd, they released their Japanese major debut mini album, "Re:idol."
LIGHTSUM has released its Japanese major debut mini album, Re:idol, featuring five songs and a new “kawaii” idol concept. The lead song’s music video premieres today, and the group will begin Japanese activities with live streams, a festival stage, and release events.
LIGHTSUM held an interview in Seoul on the afternoon of the 22nd to commemorate the release of its Japan debut album. Marking its fifth debut anniversary this year, the group released its Japanese major debut mini album, Re:idol, today and made a full-group comeback after two years.
Six-member girl group LIGHTSUM is drawing attention with a new challenge as they transform into a “Japanese-style idol.” Their lead song “Doshite” from the major debut mini album Re:idol began streaming today. The song portrays sweet, bittersweet one-sided love, and the MV teaser highlights their new visuals. They will also hold their first YouTube live stream, premiere the full MV, and continue activities in Japan with documentary, festival, and release-event appearances.
Kstyle and IDOLCHAMP have launched the September vote for Kstyle POWER PUSH. Fans can choose the monthly power-push artist from August 25 to September 3, 2026, using Ruby CHAMSIM in the IDOLCHAMP app. Featured comeback artists include &TEAM, FLARE U, NCT TEN, and more.
On the 27th, at Incheon SSG Landers Field, LIGHTSUM's Sanah threw the first pitch for the SSG Landers vs. Samsung Lions game. The group also formed their first unit with members Chowon and Ju-hyun, fulfilling a dream from their trainee days, and released a live clip for their new song 'Beautiful Pain.'
Kstyle celebrates its 14th anniversary with heartfelt messages and signed gifts from LIGHTSUM. The event features exclusive videos and signed merchandise from various artists. Fans can look forward to special giveaways and updates on the anniversary page!
On the afternoon of the 4th, the '2026 F/W Seoul Fashion Week' was held at Dongdaemun Design Plaza in Seoul, featuring LIGHTSUM members Ju-hyun and Cho-won on the runway. Additionally, LIGHTSUM formed their first unit, fulfilling a dream from their trainee days. The event also highlighted the Grammy-winning cover by a Korean artist, gaining renewed attention.
On the afternoon of the 4th, Seoul Fashion Week kicked off at the Dongdaemun Design Plaza, featuring the PHENOMENON SEEPER collection. Notable attendees included Han Seungwoo, DREAMCATCHER's Sua, and members from LIGHTSUM, Queenz Eye, and more. Additionally, Han Sona reportedly opposed her brother's idol debut, referencing their past matching outfits. The event also celebrated DREAMCATCHER's first unit, UAU, with a showcase for their mini-album 'Playlist #You Are You.'
