Listen to Kimetsu No Yaiba Opening 1: Gurenge online. Kimetsu No Yaiba Opening 1: Gurenge is an English language song and is sung by Rap AR Anime. Kimetsu No Yaiba Opening 1: Gurenge, from the album Anime Opening, Vol. 2, was released in the year 2020. The duration of the song is 3:52. Download English songs online from JioSaavn.