IAとONEがにゃんにゃんするだけ。 (IA to ONE ga Nyan Nyan Suru Dake)

IA To ONE Ga Nyan Nyan Suru Dake is a song sung by IA Akasaka and ONE Akasaka. It is the ninth track and the tenth track in Other Vocaloid Songs 129: Mostly ONE.