ONENESS

 is a song by Roselia.

It is the title track of their 4th single, with Determination Symphony as the coupling track. It was released on November 29, 2017. The limited Blu-ray edition contained recorded footage of Rosenlied's second performance.

It was one of the challenge songs for the event Determined Darkness, Blue Rose Pride.

It was written by Oda Asuka, composed by Agematsu Noriyasu, and arranged by Fujinaga Ryutaro.

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Chart Performance

 * On November 29, 2017, ONENESS ranked 8th in the daily singles ranking in Oricon.
 * The single remained on the same spot in the weekly ranking.
 * It stayed in the weekly charts for 15 weeks.

Live Performances

 * January 13-14, 2018: GARUPA Live in Tokyo Day 1 & 2
 * May 13, 2018: -Ewigkeit-
 * November 7, 2018: Vier
 * February 21, 2019: Hitze
 * April 5, 2019: Bushiroad DJ LIVE vol.2 (by Shizaki Kanon, Tsumugi Risa and )
 * August 3, 2019: Flamme
 * November 30-December 1, 2019: Rausch und/and Craziness Day 1 & 2
 * December 7, 2019: CharaExpo USA 2019
 * August 21, 2020: Einheit
 * February 14, 2021: Beyond the Dimension Music Festival 2021 Day 2
 * August 21, 2021: The Beginning Day 1
 * May 21, 2022: Weißklee