According to BEMANIWiki's verification [1][2], 黒き螺旋のクレイドル is one of the requirements for Shades of Day at Kaimei! MN tanteisha unlocking system. Therefore, PON is involved in this song in some way.--Co↑co↓co↓ (talk) 17:33, 29 April 2022 (UTC)
According to BEMANIWiki's verification [1][2], 黒き螺旋のクレイドル is one of the requirements for Shades of Day at Kaimei! MN tanteisha unlocking system. Therefore, PON is involved in this song in some way.--Co↑co↓co↓ (talk) 17:33, 29 April 2022 (UTC)