秘密の森のその奥に (Himitsu no Mori no Sono Oku ni)

Himitsu No Mori No Sono Oku Ni is a song sung by IA Akasaka and Aro Rouon. It is the one-hundred-and-thirtieth track and the one-hundred-and-thirty-first track in Other Vocaloid Songs 132.