 The song is composed in the key of B minor and Kudo's vocals span from B3 to A4 in modal voice, and up to C5 in head voice.Lyrically, Nakajima writes about a protagonist's frustrations with a lover unwilling to be vulnerable with her, imploring her subject to "set her free from the loneliness".Kudo was praised for her earnest interpretation of Nakajima's lyrics.