Download MP3 Sizuk (feat. Kotoha) - Cotton Days from album Isekai de Mofumofu Nadenade suru Tame ni Ganbattemasu. - OP just for review, Please support the Artist/Band by buying their original song "Sizuk (feat. Kotoha)" Available on iTunes, Spotify, JOOX, Amazon, or other Official Music Store. Best regard.