MONSTER

Background
"I'm back!..."

- KIRA "MONSTER" is an original GUMI song by KIRA.

Trivia

 * In the background of the PV, there are a lot of character items piled up, including but not limited to: A couple of leeks (Hatsune Miku), NOVA (MAIKA's pet), MAYU's Usano Mimi, and Teto's bread.