アルカリレットウセイ (Alkali Rettousei)

Background
"Alkali Rettousei" is an original song by Kairiki Bear featuring Hatsune Miku. It is the character theme song of from the NHN Playart x NND’s game app #Compass.

This song has entered the Hall of Legend. It is featured in Kairiki Bear's album Inai Inai Reboot.