This event would leave an impression on her, and as her parents were not interested in her taking up performance arts, she decided that she wanted to become a singer.

[13] She made her North American debut at Anime Expo 2011 in Los Angeles, California where she performed on July 1 and 3.

[14][15] She released the mini-album Goshiki Uta: Immortal Lovers on August 10, 2011, which contains the ending theme songs used in the 2011 original video animation series Hakuōki Sekkaroku.

[16] Kurosaki released her second studio album Butterfly Effect on November 30, 2011, containing the song "Scars", the ending theme for the ninth episode of Hellsing Ultimate.

[17] In 2011, Kurosaki formed the band Altima with Move's Mototaka "Motsu" Segawa and fripSide's Satoshi "Sat" Yaginuma.

[25][26] Her seventh single "Rakuen no Tsubasa" (楽園の翼) was released on October 15, 2014; the song is used as the opening theme for the 2014 The Fruit of Grisaia anime series.

[27] Her eighth single "Setsuna no Kajitsu" (刹那の果実) was released on May 13, 2015; the titular track is used as the opening theme for the 2015 Le Eden de la Grisaia anime series.

[33] In 2016, Kurosaki played the role of Alisa Reinford in the premium 3D musical adaptation of The Legend of Heroes: Trails of Cold Steel.

[34] During the Animelo Summer Live event in August 2016, Altima announced a hiatus from music activities.

[33] She released her tenth single "Dead or Lie" on August 17, 2016, featuring the duo Trustrick; the song is used as the opening theme for the 2016 anime series Danganronpa 3: The End of Kibougamine Gakuen: Mirai-hen.

[39] Kurosaki's eleventh single "Decadence" was released on May 9, 2018;[40] the title track is used as the ending theme to the anime series Dances with the Dragons.

[41] Her twelfth single "Gravitation" was released on November 20, 2018;[42] the title song will be used as the opening theme to the anime series A Certain Magical Index III.

[44] Her thirteenth single "Roar" was released on March 6, 2019; the title track is used as the second opening theme to A Certain Magical Index III.

[48] In 2021, Kurosaki went on a temporary hiatus after collapsing during an online live concert and being diagnosed with an epidural hematoma.

[49] She released the single "More Strongly" on November 16, 2022; the title song was used as the ending theme to the anime series Reincarnated as a Sword.

To provide an insight into the film, a trailer was also released with the crowdfunding announcement,[57] which was originally suggested by Kurosaki herself during a production meeting for the documentary.

She mentioned how, after reading the A Certain Magical Index books, she sympathized with the character Accelerator and imagined his feelings as she wrote the song.

Her life changed when she encountered lolita fashion, and modeling in the style would broaden her world and give her a sense of comfort.