"Die for You / Dearly / Believe Myself" on July 8, 2015. The band released their fifth album Radiant A on December 2. It was their first release on the VAA (Village Again Association) label, under their own sublabel that shares the Radiant A name, and their first featuring new drummer Marina, with a limited "Marina Edition" of the album available exclusively through HMV Group and Loppi. A second triple single, "Female Warrior / Nostalgic / Fragile", was released on October 26, 2016. Throughout the year, the band played at several major festivals and concerts such as Summer Sonic, Loud Park, Visual Japan Summit, and hide Birthday Party. Radiant A became Aldious's first album released overseas when it was published in Europe by JPU Records on March 17, 2017, with two additional live tracks. The group released their sixth album, Unlimited Diffusion, on May 10, 2017. The album marked the first time each of the five members contributed songs and, like their previous album, it was produced by Shinichi Kobayashi of Zigoku Quartet. Their first mini-album, We Are, followed on November 29, 2017. It begins with fans chanting "We are Aldious!" during a concert in Kōchi Prefecture which was recorded by Re:NO on an iPhone. A second mini-album, All Brose, was released on November 21, 2018. Its title is a reference to blue roses, which do not exist in nature. On November 28, Re:NO announced that she would be ending musical activities after consulting a doctor about her patulous Eustachian tube. She left Aldious after their December 17 concert at Tsutaya O-East. On April 20, 2019, Aldious began the national 45-date Evoke Tour with alternating guest vocalists R!N (SawanoHiroyuki [nZk]) and Saki (Cyntia). Toki began temporary maternity leave from the group after their June 9 show due to her pregnancy. The remaining dates of the tour were performed with guest guitarist Narumi (Destrose). The half-Filipino and English-fluent R!N officially joined the band as full-time vocalist on August 6. Aldious, with Narumi, performed their first international concert in Anaheim, California, at the NAMM Show on January 17, 2020. Toki returned to live activities with a performance on March 1. On March 18, the band released a self-cover album titled Evoke 2010–2020, which also includes a new song written by R!N. Their 2020 Japanese tour Unlash was scheduled to run from April 25 to November 23, with their first shows in Europe