限りなく灰色へ / すりぃ
にもね ver. ► https://www.youtube.com/watch?v=RZvPCPEX2U4
本家様 ► https://www.youtube.com/watch?v=cwLlHFMlBNQ

Close to Gray / Surii
Nimone ver.► https://www.youtube.com/watch?v=RZvPCPEX2U4
Original ► https://www.youtube.com/watch?v=cwLlHFMlBNQ