風唄

風唄 is a song sung by Ria Soune and Renzi Soune with Yufu Sekka, Aya Yu, Momo Momone, Koto Fuuga, Ruko Yokune Female, Shin Kaiga, Sora Suiga, Eiichi Todoroki, and Teto Kasane doing the chorus. It is a Niconico only song.