Eʼsekai (イセカイ)

Okinawan All-Female High School Rock Band & Twin-Vocal Modern J-Rock Outfit

Biography & Band History

Hailing from Okinawa, Japan, Eʼsekai (イセカイ) is an all-female rock band formed by four high school musicians: Miyu, Nanami, Yuna, and Aine. Blending raw youth-rock energy, modern alternative rock production, and emotional Japanese pop-rock melodies, the band rapidly made waves across the regional live circuit (including showcases at Okinawa's live house Output) before breaking out to wider national and international audiences online.

Characterized by their driving twin-guitar attack and dual-vocal dynamic between bassist Miyu and guitarist Nanami, Eʼsekai broke through in mid-2026 with their self-titled debut single "異世界" (Eʼsekai) and their high-impact second single "TRIGGER," which paired heavy overdriven riffs and dynamic rhythm shifts with introspective lyrics exploring resilience, adolescent struggle, and self-belief.

Band Members & Instrumental Roles

Miyu (心優) – Bass & Lead Vocals: Anchors the band's foundation on electric bass while delivering expressive lead vocals. Co-writes lyrics and shapes the band's emotive frontline vocal delivery.
Nanami (波美) – Guitar & Lead Vocals: Handles dual lead and rhythm guitar alongside co-lead vocal duties, providing vocal harmony counterpoint and punchy, overdrive-laden rhythm chord work.
Yuna (結南) – Guitar: The band's dedicated guitarist, executing melodic lead lines, textured rhythmic accents, and soaring melodic fills that define the group's bright yet biting guitar sound.
Aine (愛音) – Drums: The rhythmic powerhouse behind the kit, driving the band's fast-tempo transitions, tight snare backbeats, and dynamic rock groove.

Band Information & Sound Profile

Origin: Okinawa, Japan
Genre & Style: Modern J-Rock, Alternative Rock, Pop-Rock, and Girls Rock.
Sonic Signature: Bright, high-energy modern rock anchored by a punchy bass/drum rhythm section, layered dual-guitar textures, and soaring twin-vocal melodies alternating between clean pop sensibility and driving rock intensity.

Selected Discography & Key Releases

"異世界" (Eʼsekai) (Debut Single) (2026): The band's introductory self-titled single accompanied by an energetic live music video, establishing their dynamic twin-vocal interplay and driving guitar presence.
"TRIGGER" (2nd Single) (2026): Released digitally on July 15, 2026. Featuring music and arrangements by Ryosuke Shigenaga (lyrics by Shigenaga and Miyu) and mixing by Eiichi Nishizawa, this breakout anthem pairs heavy, driving riffs with an emotional message of confronting inner doubts and moving forward.

沖縄発Miyu( 心優)、Nanami( 波美)、Yuna( 結南)、Aine( 愛音) の4 名で結成された女子高校生バンドEʼsekai( イセカイ)です。

E'sekai is a high school girls' band from Okinawa, consisting of four members: Miyu(Bass Vocal) , Nanami(Guitar Vocal) , Yuna (Guitar), Aine (Drums).

2nd Single「TRIGGER」
DL Streaming：https://orcd.co/esekai_trigger

Lyrics by Ryosuke Shigenaga,Miyu
Music Arranged by Ryosuke Shigenaga
Recorded by Minoru Hamasato(3rd GARAGE STUDIO)
Mixed by Eiichi Nishizawa
Mastered by Kotaro Kojima(FLAIR)
Video：Cinematographer,Takato Nonomiya.Hiroki Urabe
Lighting Director：Shoichiro Jiuchi
Hair + Make-up：GLEAM Inc.
Stylist：MASAYA
Colorist：Kouki Shimoji
Director/Editor：Mone Awai

E`sekai「TRIGGER」MUSIC VIDEO(English sub.)