KEY TO LIT "KEY TERUYA2" - Debut Single
About the Debut Single "KEY TERUYA2"
KEY TO LIT was formed in February 2025, with all five members having more than ten years of experience as junior performers. The group announced its CD debut at an event held at Zojoji Temple in Tokyo in August 2026.
The debut song "KEY TERUYA2 -Kiteru Yatsu-" centers on bonds and portrays the strong connection among companions walking forward together. It expresses their determination to take a new step.
Every edition also includes "KEY 2 LIGHT," the TV Tokyo table tennis theme song, an uplifting uptempo number with an exhilarating sense of speed.
The single is released in three editions: Limited Edition Type A, Limited Edition Type B, and Regular Edition. Limited Editions Type A and B include a Blu-ray or DVD with bonus footage.
Choose Your Edition
・Limited Edition Type A
Limited Edition Type A includes the music video for "KEY TERUYA2 -Kiteru Yatsu-" and behind-the-scenes footage from the cover and music video shoots.
- KEY TERUYA2 -Kiteru Yatsu-
- KEY 2 LIGHT
- Title TBA (Track 3)
- "KEY TERUYA2 -Kiteru Yatsu-" Music Video
- "KEY TERUYA2 -Kiteru Yatsu-" Jacket Photo Shoot Behind the Scenes
- "KEY TERUYA2 -Kiteru Yatsu-" Music Video Behind the Scenes
- Slipcase
- 16-page lyric book
- Limited Edition Type A sticker
- Application flyer (unique 2D code / valid only in Japan)
・Limited Edition Type B
Limited Edition Type B includes the documentary music video for "KEY 2 LIGHT," behind-the-scenes footage from the debut announcement event at Zojoji Temple in Tokyo, and the variety program "KEY TO BOND -Kizuna e no Kagi-," in which the members test their bonds.
- KEY TERUYA2 -Kiteru Yatsu-
- KEY 2 LIGHT
- Title TBA (Track 3)
- "KEY 2 LIGHT" Documentary Music Video
- Debut Announcement Event Behind the Scenes
- "KEY TO BOND -Kizuna e no Kagi-" Variety Program
- Slipcase
- 16-page lyric book
- Limited Edition Type B sticker
- Application flyer (unique 2D code / valid only in Japan)
・Regular Edition (First Press)
The Regular Edition includes eight tracks, consisting of four songs and their instrumental versions. It includes two additional songs not included in the Limited Editions Type A and B.
- KEY TERUYA2 -Kiteru Yatsu-
- KEY 2 LIGHT
- Title TBA (Track 3)
- Title TBA (Track 4)
- KEY TERUYA2 -Kiteru Yatsu- (Instrumental)
- KEY 2 LIGHT (Instrumental)
- Title TBA (Track 3) (Instrumental)
- Title TBA (Track 4) (Instrumental)
- Jewel case
- 28-page lyric book
- Regular Edition sticker
- Application flyer (unique 2D code / valid only in Japan)
Edition Comparison
Compare the main differences between the three editions.
| Contents | Limited Edition A | Limited Edition B | Regular Edition (First Press) |
|---|---|---|---|
| Media | CD + Blu-ray / DVD | CD + Blu-ray / DVD | CD |
| CD Tracks | 3 | 3 | 8 |
| Video Contents | Title Track MV & Behind the Scenes | Documentary MV, Event Footage & Variety Program | None |
| Packaging | Slipcase | Slipcase | Jewel case |
| Lyric Book | 16 pages | 16 pages | 28 pages |
| Enclosed Sticker | Type A | Type B | Regular Edition |
| Application Flyer | Included | Included | Included |
| External Bonus | A4 Clear Folder | A5 Sticker Sheet | A6 Photo Card |
*The application flyer includes a unique 2D code and is valid only in Japan.
*External bonuses are available on a first-come, first-served basis. Please check each product page for the latest bonus availability.
*The Blu-ray and DVD versions of each limited edition contain the same video content.
About KEY TO LIT
KEY TO LIT (pronounced "Kiteretsu") is a five-member Japanese idol group under STARTO ENTERTAINMENT. The group was formed in February 2025 by Taisho Iwasaki, Mizuki Inoue, Reia Nakamura, Soya Igari, and Taiko Sasaki.
All five members have more than ten years of experience as junior performers. In 2025, KEY TO LIT held their first arena tour across five cities in Japan.
In August 2026, the group announced their CD debut at an event held at Zojoji Temple in Tokyo. Their first single, "KEY TERUYA2," is scheduled for release on December 9, 2026.
MEMBER PROFILES
The following information is based on the members' official profiles published by STARTO ENTERTAINMENT.
Taisho Iwasaki
- Birthday: August 23, 2002
- Agency Entry Date: May 2, 2015
- Birthplace: Kanagawa, Japan
- Hobbies: Traveling, playing guitar, and playing piano
- Special Skill: Singing
Mizuki Inoue
- Birthday: October 31, 2000
- Agency Entry Date: October 3, 2009
- Birthplace: Kanagawa, Japan
- Hobbies: Traveling, watching movies, eating sweets, and sleeping
- Special Skill: Being able to sleep anywhere
Reia Nakamura
- Birthday: April 2, 1997
- Agency Entry Date: October 3, 2009
- Birthplace: Tokyo, Japan
- Hobbies: Video games, manga, and guitar
- Special Skills: Skateboarding, snowboarding, painting, and swimming
Soya Igari
- Birthday: September 20, 2002
- Agency Entry Date: June 16, 2013
- Birthplace: Tokyo, Japan
- Hobbies: Snacking, watching sports including American football, and mentally debating comments on online news articles
- Special Skill: Entertaining people
Taiko Sasaki
- Birthday: May 20, 2002
- Agency Entry Date: May 2, 2015
- Birthplace: Tokyo, Japan
- Hobbies: Eating, taking walks, and gardening
- Special Skills: Playing drums and dancing
Official Live Performance
・KEY TO LIT [KEY 2 LIGHT] First Performance Special Live
*This video includes the group's CD debut announcement.
This video is available with English subtitles.
・KEY TO LIT - "KITERETSU FIRE"
The performance video is available with English subtitles.
Release Information
| Artist | KEY TO LIT |
|---|---|
| Title | KEY TERUYA2 |
| Release Date | 2026/12/09 |
| Label | Universal Music |
| Limited Edition A (Blu-ray) | TYCT-39363 |
| Limited Edition A (DVD) | TYCT-39364 |
| Limited Edition B (Blu-ray) | TYCT-39365 |
| Limited Edition B (DVD) | TYCT-39366 |
| Regular Edition (First Press) | TYCT-39367 |
Official Links
- KEY TERUYA2 Official Special Website
- KEY TO LIT Official Biography
- KEY TO LIT - Junior Official Website
- Official Debut Single Announcement
For International Fans
CDJapan ships worldwide and supports multiple currencies and payment methods. Pre-orders are accepted ahead of the December 9, 2026 release date.
Note: This article was created on 2026-10-14. Any subsequent updates or changes to product details or bonus contents may not be reflected here. Please confirm the latest information on each product page.
