Anima

"Anima" is a song from the Japanese anime series Sword Art Online, and it serves as the opening theme song for the second part of the Alicization arc. The original key of the song is B minor. It was performed by the popular Japanese singer, ReoNa, who gained significant recognition through her involvement with the series. The song was composed by Yuki Kajiura, a renowned composer known for her works in various anime and film soundtracks. Interestingly, "Anima" holds a special significance as it represents the awakening of the main character's true self in the series. The melody of the song is a catchy blend of pop and rock elements, with powerful vocals and intricate instrumentation that create a sense of intensity and emotional depth.