IS:SUE 's 4th single "PHASE" is scheduled to be released on Wednesday, January 14th, 2026.

Pre-orders will start today at various online shops and CD shops.

Embrace your imperfections and finally find your true self

Since the birth of this "different" new HERO, IS:SUE has consistently presented herself as she is, "being herself," and has now announced the release of her long-awaited 4th single, "PHASE," which marks the completion of the first act of her journey and the beginning of a new journey to the next climax!

This work uses the moon as a motif to express the time it takes to find one's true, imperfect self.

Four new songs will be released, including the lead track "Phase" and the pre-release track "Super Luna."

The first limited editions A and B will each contain a live performance from the fan concert "2025 2ND IS:SUE ASSEMBLE - The Scarlet Anniversary," which was held at Tokyo International Forum Hall A on June 11th this year to commemorate the first anniversary of their debut.

The FC limited edition features solo jackets for each member.

The UNIVERSAL MUSIC STORE exclusive edition comes with a tarot-style card set.

Please see below for detailed information on the contents.

【Product Summary】

▼Title

4th Single "PHASE"

▼Release date

Wednesday, January 14, 2026

▼Number of formats: 7 formats

◆First limited edition A [CD+DVD]

Price: ¥1,727 (excluding tax) / ¥1,900 (including tax)

Product code: UMCK-7293

(CD)

"Phase", "Super Luna", and others

(DVD)

"2025 2ND IS:SUE ASSEMBLE - The Scarlet Anniversary" LIVE PERFORMANCE #1

Recording details will be announced at a later date

＜First press limited edition＞

1 trading card (1 randomly selected from 4 types of first limited edition Aver.)

1 selfie trading card (1 randomly selected from 4 types of first limited edition Aver.)

◆First limited edition B [CD+DVD]

Price: ¥1,727 (excluding tax) / ¥1,900 (including tax)

Product code: UMCK-7294

(CD)

"Phase", "Super Luna", and others

(DVD)

"2025 2ND IS:SUE ASSEMBLE - The Scarlet Anniversary" LIVE PERFORMANCE #2

Recording details will be announced at a later date

＜First press limited edition＞

1 trading card (1 randomly selected from 4 types of First Press Limited Edition B ver.)

1 selfie trading card (1 randomly selected from 4 types of first limited edition B ver.)

◆ Regular Edition [CD ONLY]

Price: ¥1,273 (excluding tax) / ¥1,400 (including tax)

Product number: UMCK-5796

(CD)

"Phase", "Super Luna", and others

＜First press limited edition＞

1 selfie trading card (1 of 6 close-up versions randomly included)

1 sticker sheet

◆UNIVERSAL MUSIC STORE Limited Edition [CD + Tarot-style cards]

Price: ¥1,273 (excluding tax) / ¥1,400 (including tax)

Product code: PDCS-5949

(CD)

"Phase", "Super Luna", and others

＜First press limited edition＞

1 Polaroid-style trading card (1 of 6 types randomly included)

*Events for the UNIVERSAL MUSIC STORE limited edition will be announced at a later date.

◆FC Limited Edition [CD ONLY / Member-specific solo jackets in 3 versions]

Price (common): ¥1,091 (excluding tax) / ¥1,200 (including tax)

-NANO (product number: PROS-5042)

-YUUKI (product number: PROS-5043)

-RINO (product number: PROS-5044)

(CD)

"Phase", "Super Luna", and others

＜First press limited edition＞

1 hologram selfie trading card (1 of 3 types randomly included for each member, the same as the solo jacket)

First press only: Premium rare trading card (different design) *Randomly included in limited quantities

*This work will be released by a three-member lineup, and RIN will not be participating.