Another Casual Visual Punk. He joined the group the same time as Yuki. Is the oldest, and also most responsible, besides Kage. Has a strong passion for music as well. Likes Akatsuki.

Inspiring Idols: Joey Jordison (drummer) of Slipknot, Shinya (drummer) of Dir En Grey, Zbigniew Robert "Inferno" Promiński (drummer) of Behemoth

Real Name: Migetsu Rokuto (Beautiful Moon | Six Harmony)
Kanji name:  美月 六和
Stage name: Hiai 疼痛 (Pain)
Main Extra Role: Music Composing, Sound Checking, Recording
Age: 19
Height: 183cm; 6'0''
Orientation: Straight
Music Preferences: Heavy Metal, Brutal Death Metal, Black Metal, Hardcore rock
Image description:
- Bluish and spiked short hair, long fringe to the left
- Blue eyes
Piercings:
- Venom piercings on right side of lower lip
- 1 piercing on right eyebrow
- 2 on each ear
Self-Proclaimed Supernatural Being: Werewolf

Hiai was also asked: Werewolf?
Hiai said: Because I have the urge to kill every full moon night
Interviewer: ... (wonders whether he is serious)