Male. Long black hair. Handsome. Biwaki Masashige's father. He's in his 40s but incredibly handsome lol. When he transforms, he gets green skin and green veins. Green eyes. His clothes rip. Massive physique. Capable of regeneration.

Male. Brown hair. Wearing a blue jacket. A detective. He's crazy because he took the Hulk drug, but he's so handsome;;; In his 20s. Capable of regeneration.

Male. Black short cut. Handsome face(?). In his 20s. Former special forces. Laid-back. Crazy from the Hulk drug. Capable of regeneration.

Female. Black bob cut. Crazy from the Hulk drug but pretty. In her 20s. Innocent but just snaps. Capable of regeneration.

Female. Black hair tied up. Wearing white mourning clothes. Kaito's daughter. Innocent. Sane. 9 years old.

Female. Long black hair. Pale skin. 9 years old. Black bob cut. Real name: Masashige Hirosa.

Male. Black hair. 17 years old. Wearing a black jacket.

Male. Grim Reaper. Long white hair. Wearing a black cloak. Red eyes. Weapon: Scythe.

Male. Good at drawing. Tied-up hair. Isamu's older brother. Cold and calm personality.

Female. Black ponytail. Former special forces. Cold. Has zero fear. 22 years old.