Optimize (EP)

Optimize (stylised in all caps) is the fifth EP by Japanese rock band Coldrain. Self-produced by the band's lead guitarist Ryo Yokochi, it's currently scheduled to release on 24 October 2025. It is the band's first release on Century Media Records and Sony Music Japan after leaving longtime label Warner Music Japan.

Optimize
EP by Coldrain
Released	24 October 2025 (2025-10-24)
Recorded	2024
Genre	Post-hardcore metalcore[1]
Length	10:51
Label	Sony Music Japan Century Media
Producer	Ryo Yokochi
Coldrain chronology
Homecoming Live at Nippon Gaishi Hall (2025) Optimize (2025)
Singles from Optimize
"Incomplete" Released: 20 March 2025 "Chasing Shadows" Released: 6 August 2025 "Free Fall" Released: 26 September 2025

While it's the band's first EP in four years since the lead single "Paradise (Kill the Silence)" (2021) from the band's seventh studio album Nonnegative (2022) was released as such; it is the band's first full proper EP in eleven years since Japanese exclusive Until the End (2014), marking Optimize as the band's first EP to be released worldwide upon release.

Background

On 18 March 2025, the band announced that they had left long-time label Warner Music Japan and had put pen-to-paper on a contract with German based label Century Media Records on an international deal, while signing with Sony Music in their home country.^[2][3] Simultaneously, the band teased the lead single "Incomplete" before its release on 20 March as the band's debut single on their new labels.^[4] On 27 March, the music video for "Incomplete" was released alongside aditionally announced German tour dates for August.^[5] On 4 April, the band announced a fullscale European headline tour, kicking off in Manchester, England on 22 November and culminating in Frankfurt, Germany on 13 December, the tour spans across 16 cities, including the band's first UK dates in six years, alongside their debut concert in Hungary.^[6][7] On 11 July, the band formally announced their fifth EP Optimize, scheduled for release during an unspecifed time in the autumn.^[8] The band simultaneously announced a One Man Tour across Japan to promote the release.^[9][10] On 6 August, the band surprise released the EP's second single "Chasing Shadows".^[11][12] On 9 September, the band announced that the EP would be scheduled to release on 24 October.^[13][14][15] On 26 September, the band released the EP's third single "Free Fall".^[16][17]

Track listing

Optimize track listing

No.	Title	Writer(s)	Length
1.	"Track 1"
2.	"Chasing Shadows"	Masato Hayakawa Ryo Yokochi	3:47
3.	"Track 3"
4.	"Incomplete"	Hayakawa Yokochi	3:35
5.	"Free Fall"	Hayakawa Yokochi	3:29
Total length:			10:51

Personnel

Coldrain

• Masato David Hayakawa (マサト, Masato) – lead vocals, composition, lyricist
• Ryo Yokochi (ヨコチ, Y.K.C.) – lead guitar, composition, production
• Kazuya Sugiyama (スギ, Sugi) – rhythm guitar, backing vocals
• Ryo Shimizu (リョウ, RxYxO) – bass guitar, backing vocals
• Katsuma Minatani (カツマ, Katsuma) – drums, percussion