A video album of the band’s “15th Anniversary V.I.P. Party ’25” concerts was released on September 2, 2026.
On 28 August, the band released the album’s second single “Poison”, featuring Bert McCracken , the frontman from American rock band The Used .
that was released the following day; it was unveiled as the lead single for their eighth studio album Optimize = Optdemise , acting as a sequel to Optimize
On 16 July 2026, the band teased their new single “Ex-Humanity”
The sold-out Unending Journey -Forever- tour began that same day and will see 33 shows in 22 cities
Their first new song in six years, ” Forever “, was released as a single on May 29 and features Shinya.
On May 29, they released a cover of the SennaRin song “ENDROLL” in which Kawakami had appeared as a guest vocalist. The [Alexandros] version also features SennaRin and Hiroyuki Sawano .
The band released the digital single “Hallelujah” on April 29 as the opening theme for the 2026 anime Fist of the North Star: Hokuto no Ken .
On April 1, 2026, the members were appointed as Honorary Tourism Goodwill Ambassadors for Sagamihara in recognition of their connections to the city and their involvement in local cultural events.
but postponed the show to March 12, 2026